I’m gonna be honest, I’ve never played a game where parry made it worse.
its like a grappling hook
Grappling hooks solve the problem of traversal and movement which almost always add fun. Parrying is being added to games that had well designed combat systems. Resident Evil 4 Remake as an example. The original game was all about resource management and positioning. Now parrying added a solutions to a problem that didnt exist. The tension is gone from the original game. Instead of conserving ammo and spacing you can just parry your way through levels.
There are already ways to add depth and risk/reward to combat outside of “parry or hack-and-slash.” Monster Hunter builds its entire combat system around positioning and learning monster patterns. Devil May Cry got depth from its combo creativity and style rankings. Bayonetta has the dodge offset system. The original RE4 focused on resource management and crowd control. Bloodborne uses dodging and rally mechanics.
Parrying works in games like Sekiro, Sifu, Metal Gear Rising, E33, Lies of P because the whole game is designed around it from the start. Games like Spider-Man 2, RE4 Remake, Doom are tacking on parrying to combat systems that already worked. Just adding this because successful action games have parries now and checking a box instead of something essential.