Having different AI skill difficulties sounds like a lot of work and balance need though. With the mechanics the game already offers (stamina for dodge rolls, block and parry) the game would already change a lot in skill based difficulty with changing stuff like hp, damage and knockback.

If I can make more mistakes in parry timing without dying, the game is meaningfully easier. If I can kill the enemy before my stamina is empty, the game is meaningfully easier. If I don't get staggered from a single hit etc. If their attacks matter less, it's okay if the AI is smart enough to be enjoyable with higher numbers. Smarter AI is something people dreamed of for a long time, but it ultimately a lot of work for little payout. If there was really a hard nerf to the AI from test version to now, that is a different story (and the patch notes say there was a change).