No, I somewhat doubt it.
Since the list of "unintentionally awful decisions" we
could have made included "go lethal", it means going lethal would have made things
worse.
All things considered, I am now beginning to suspect that we're about to run face first into that hinted hidden interaction between Flare affinity and some of the pyrokinetic capes around, which removing the safeguards would only have made
more pronounced.
Also, in the "where there's smoke, there's fire" (thanks
@landcollector) idiom's way, it might mean that Kayleigh had
reason to believe Circus was in Philly. And IIRC Circus has fire in her grab-bag.