He is neither overpowered nor useless for the objective game, people just don’t know how to work around him especially that the “lets all cluster at the aura station” strategy doesn’t work as well anymore.
I had games where i was really strong with Phantom and those were games where people didn’t think while playing they clustered up, didn’t check any corners etc. i could at Bridge (last part) run up to the MG kill the guy and just hide for someone to come and get killed by me again…for about 6 times in a row. On the other hand there were rounds were people countered very effectivly shut the cloak down with Vasili or just moving with spaces between them covering each other, there i normally ended the game with a bad score.
Phantom is powerful yes but not broken or unbalanced most players just are really frustrated because there before favorite playstyle doesn’t work out so easily anymore.