I'm concerned that by limiting it to maximum targeted enemy health values instead of the actual attack damage you're still preventing the power from properly affecting the surrounding enemies. You still have to fight against armor, shield gating and flat damage resistance, which means that the impacted damage will still be negligible at higher levels. Doubling a tickle just makes it a more annoying tickle, it still doesn't qualify as a proper attack.
It really feels at times like there's a lot of design choices made that have no bearing on the way anyone actually plays Warframe. Like, you