I think it was more a statement of principle than any sort of effective deterrent against using zKylos to clear P1. The devs want Herioc Tank to be a full guild effort, and perhaps this is a statement that anything that tilts that in favour of individual solos of phases will be reviewed. They did it with zMaul in NAAT and Clones in HAAT with the perma-heal immunity, they did it with Nute and now they've done it with Kylo. So those of you rocking squads doing huge chunks of P2 and P4 should be a bit wary of the dev's willingness to restore balance - as the Jedi found out, it's not always a good thing :)
Having said that, zKylo did his job in allowing our guild to focus on good P2, P3 and P4 squads for heroic by removing P1 from the equation. Given the lack of a middle-ground tier between Normal and Heroic, this was probably the next best thing.
