Of course.
Mechanically, I took your Night Breath stuff (I hope that’s alright) and changed the colour of it. That’s pretty much the only difference. There’s also no way to stop it from getting into your bodily systems. (If that wasn’t already a thing)
Removing it from the equation will get a result I haven’t thought about until now. If the PCs choose to get rid of it, then it will certainly make more enemies than friends, probably turning the Syndicate against them.
When you say, “Put the civilians in danger” that is a good conclusion to jump to if the bioweapon is destroyed. With the plan to eradicate the Empire thwarted, there will definitely be some politics happening as the Syndicate tries to find another way to win.
Now you’re speaking my language lol
I have planned for the PCs to go to a space station to pick up enough Feedback (the bioweapon) to gas the Imps straight to hell. With these new ideas, I’ll probably do something in the station showing the Pros of being under the Empire’s roof.
Once again, good food for thought.