Okay, so, like, we all kinda assumed we would win against the spooders if it came to a fight in any choice, but good God.
They just evaporated. They just got the "You are already dead" treatment. It wasn't even punching down, this was just cleaning up.
Honestly, aside from realms, there is an invisible stat I would like to name "quality" in all Xianxia. Like all Xianxia tropes, Yrs has made it more reasonable, realistic and interesting than it usually is (if it was as unreasonable as in most Xianxia, we would be trouncing ducal cyans -_-) but there is still a quality hierarchy in place.
In this case, many factors measure in quality (including matchup ie how well you counter your opponent), but generally, spirit beasts and spirits tend to be of the lowest quality (when not bound by humans in order to evolve, or being legendary quality like dragons or xuanwu or kin to spirit ancestors, point is, this is rule of thumb nothing without exceptions). Meanwhile, thanks to our luck, talent, math cabal strategizing and workaholism, we have probably managed to get a quality level nearing that of a ducal. That means we can hit quite a bit above our weight class in low-quality enemies, even if they are 1 or 2 green steps above us.
This is not obvious within the sect, because unlike most xianxia our quality is high but not inhuman, and the sect selects for quality, meaning that a lot of our peers, while of lower quality, are not that much lower on the quality spectrum as to get beaten when holding a higher green level, and we even have several peers who match or may even slightly surpass our quality (every single Ducal and Ji Rong, for starters).
But every single time we fight non elite troops, the way we scythe through them shows that the reality of the inner sect, where the elite gather, is not the reality of people of our level. Remember how we trashed the bandit army, and how we assassinated barbarian greens until their high-quality bardbarian came? That is the difference in quality between us and the actual, not skewed upwards by sect rankings, average green. And the average spirit is considered weaker than that (exceptions apply).
So yeah, it could only be a curbstomp when they challenged her in her arena.