JPC can not be allowed to be viable in her current state
Ignoring her current nightmarish stats, as long as this thing is even remotely viable, she will continue to be a problem, even if they nerfed her HP to 200 or even 175. This is a binary issue.
Perma flight simply breaks way too many interactions in her favor. Melee heroes basically cant interact with her. Projectile heroes struggle to hit her. The only type of heroes that can reliably deal with her are HS and even then thanks to purr paired with her speed, you can hardly call that a disadvantageous matchup.
This is without considering tether, which is yet another game breaking ability that extends some of her inherent vileness to whoever she's carrying.
Its insane to me that this thing has been allowed to roam free for so long. This has been an issue since her release, which has simply gotten worse thanks to the buffs she received. Its also not isolated to low rank, its a game wide issue from the lowest of ranks all the way to pro play. Yet somehow cat players will have the gall to say skill issue when literally quartz cant hit the damn thing, one of if not the best HS player in the game.
JPC needs to be reworked. Perma flight needs to be removed in favor of something similar to either echo or pharah. The OW framework cant survive a hero like her.
There are several problematic heroes like Freja, Anran (low to mid rank), Cass, Mauga, Zarya, Kiri and so on, but all of them are saints compared to cat. The only hero that comes even close to JPC is hog and even then I would say she's still worse. At least hog has the decency to be crap outside of 6v6.