Well, parry strength used to scale with strength but was removed.

Parrying an attack is not interactive. Parrying an attack is not exciting, fun or engaging gameplay (even with procs). I don't feel like I've done anything to negate some damage and just roll on with my proc.


That's the key of the issue surrounding it as a gameplay stat, that active mitigation is more engaging and rewarding, while parry was neither.
So if parry was like block, it'd still suffer from the current issues surrounding it.
It's boring to itemize around, it's random and not-useful as defense in a spike damage game and it does not engage the tanks, rather relegating them to meatshields who simply take hits and hold aggro.