We don't know it's just likey they got some of our weapons and wanted their own so give it to there scientists and they found out they actually had a planet that naturally had it and then start making their own stuff.
Easier said then done even before we turned a noticeable fraction of their population into corpses and/or cripples. Give it long enough and the IS will have rebuilt enough of the military industrial complex the Clans cease to matter nearly as much. Clans are a extremely militarized but very small cult compared to any one IS state.
I'm fairly certain that they already had pet tech before running into us it's just that they probably decided that petrusite is dezgra and abandoned it until they ran into us.
Wouldn't be suprised if they were that stupid
Being fair, not using pet tech because of the potential political blowback isn't stupid if you're in a constant twenty way free for all that has a history of sides that buck the culture too much being dogpiled and killed.
Well
Given how quickly we did see petrusite-equipped naval units arrive into the theatre, given how involved naval refits are, I think that they did have quite a few units equipped with petrusite; it's just that they're at the absolute bottom of the petrusite tech tree, and decided to prioritize equipping certain big ticket items such as warships, rather than ground units. The clans slammed into the fleets of the Inner Sphere at Skandia and Ark-Royal with multiple shielded battleships; even with the peace that came with the ilKhan election, that suggests they had petrusite-equipped battleships beforehand, and what's more, I believe we noticed a clan McKenna-class battleship equipped with primitive naval arc cannons before that. It is odd that the Clans didn't apply petrusite to ground units first, given the way they favour ground combat, but it may have been the case that the first clan to find a petrusite source were the Snow Ravens who decided to prioritize the big ticket items in their fleet, and that reflected their subsequent doctrinal choices in applying it to naval combat first. Petrusite is also arguably easier to use on warships early on, as well. IIRC, the narrative description of how we developed shields was that we developed shields rated for naval combat first and only after that did we manage to miniaturize them enough for ground units. If the clans are lower on the petrusite tech tree than ORDI is, that makes sense. They, after all, likely do not have a major capital on a petrusite planet.
In fairness, the clans haven't been shy about introducing brand new tech; they just generally try to prevent it from proliferating in order to maintain their own competitive advantage vs the other clans. Petrusite weaponry may have spread slowly outside of the clan that developed it because said clan spent a lot to protect it, and the clan that developed it may have also kept their development of it quiet and played coy in order to prevent a rush of trials to get petrusite—hence why they may have refit warships, which are expensive but rarely used, with it first, before demonstrating how capable these weapons were on the ground.
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The main reason that a clan would be leery about introducing Petrusite on the ground is that it's much more likely to kill the enemy mechwarrior than normal weapons due to its constant TACing. The military edge could easily be not worth the political headaches if they kill a Khan or two during their debut and gain their clan a new eternal rival.
The Wolf Khan negotiated for a draw because he saw there was no way he could win anymore. Which might actually not be true but he was so tired he couldn't think of a way to win anymore.
Between the tiredness or the stimulants, his mental stability would have been shot anyway.
This version of the refusal war will likely be aimed at the Ravens because some Clans likely think they pulled out of Lyndon to early. However the Ravens straight up have the most intact warrior cast out of all the Clans that took part in the invasion even Lyndon didn't really touch it. And with there naval forces (even though there damaged) they will have a advantage over any clan that tries to attack them.
I think either the Scorpions or Jaguars will develop them and personally I think it will be the Jaguars again. The Jaguars got absolutely smashed even worse then they did in canon and are the weakest they have ever been so there incredibly desperate to rebuild there forces. After all there usual tactic of bullying the other Clans to get what they need simply isn't a option at the moment because there that weak. So they NEED to rebuild the forces NOW or otherwise there going to be absorbed by another Clan. I do not envy the amount of stress the new Khan of the Jaguars must be feeling.
I am actually somewhat surprised the Goliath Scorpions were so unprepared for Lyndon compared to certain other clans, given they were also exposed to Inner Sphere warfare to a roughly equivalent degree as most of the other clans that made it to Lyndon (the Smoke Jaguars were exposed to Inner Sphere warfare to a much greater degree than anyone else, courtesy of ORDI, of course, but that just meant that they didn't make it to Lyndon). While they are apparently fairly known for sticking to Zellbrigen in inter-clan warfare, they should also be the ones that retained the most knowledge of the old SLDF combined arms manuals, given it was technically Goliath Scorpion officers that trained the Wolf's Dragoons on said combined arms manuals.
