Turning down his maximum HP, making his cloak worse, and keeping up his shield when spotted by a heartbeat sensor shifts him even more in to the role of a fighter who relies on his armor, and even farther away from a stealthy playstyle.
Whoever came up with these changes literally did the exact opposite of what s/he was supposed to do.
Okay hold up
I’ll tell you why exactly the changes are wrong and what shouldve been done instead.
120 -> 110 HP:
Should have been 100, and a slight boost to Sprint Speed to compensate.
Q Skill Cooldown 6 -> 10 seconds:
That one’s tricky. I believe you should be able to recloak after 6 seconds of cooldown, but it should require 10 seconds to fully recharge.
Changes to Q’s Damage Absorption:
Phantom should not have an overshield to his HP.
He’s designed around a sapper playstyle, assisting the team by disabling engineers and medics
I’ll tell you once again because apparently the balancing department didn’t understand it the first few hundreds of thousand times this has been said:
PHANTOM IS NOT A TANK.
Cloak doesn’t break when detected by a heartbeat-sensor:
Not only is this straight-up buff missing ANY justification, it also serves to push phantom even more outside of a stealth role and even more into a fighter role. being able to keep his armor even when he’s visible is not the right way to go.
changes to de/cloaking noises:
Redundant. Phantom doesn’t have to uncloak before attacking, and when he recloaks you’re already dead.
You should have changed the ringing noise his active cloak emits: make it louder, but make it non-directional, so you can sense his presence, but not his exact location just by soundwhoring.

Phantom is still great at melee when the occasion calls for it and still has access to great primary weapons which many people have, up until now, not even tried to use. So rushing people blindly is no longer going to be as effective as it was. It will still work, but you have a lot more of a chance to die now. And some of the abuse that a lot of people didn’t know about in gunfights with the absorb is also toned down a bit.