Couple things.
First, the guy who had a seed/egg/icky thing activate in him was one of the people Ling Qi rescued from the mountain heart/cave mishap. If the current attack is activating something that was planted prior, that earlier event of sabotage is a decent candidate for when it happened. Doesn't seem like immediately useful info, but it would show that these attacks are multi-purpose, with contingencies. Good to know. Also that everyone involved in the op should probably get a thorough checking over during debrief.
Second, I think our greatest asset at the moment is Ling Qi's perception, whether we stick around here or pursue. Seeing around and between layers of obfuscation and misdirection is valuable in either case. Staying here, we could identify the nature of the attack absent any surrounding spoofing, spot lingering traps in our people, and maybe build a cohesive profile on the perpetrator from tiny scraps of residual intent or something. In the chase, we could see through decoy trails meant to throw off the pursuit/indict others, catch wisps of the true trail despite obfuscation, or spot a foe trying to blend into their surroundings to hide.
In either case, our sharpening eyes, and our more open perspective on what possibilities are in play, is going to be one of our greater advantages.
[X] No she would leave that to him, there was something more here.
tbh, I think we can't afford to not pick either of them, they're both too important and fruitful vectors. But we have to, so this is the one I'm prioritizing, mostly just cause I like the excuse to root around in people's heads.