I haven’t played the series since AC2, and I was pretty young so I don’t recall how tough the aiming was, but no I wouldn’t say the way they implement it in this one makes it too easy at all.
If you are set on using the old method, there’s a way to turn it on relatively early in the game. I tried it for a few minutes, and it made the already somewhat difficult game impossible (for me). Your mileage may vary.
That said, the game is an absolute blast to play, I’m enjoying it so much. Even just the movement feels so goddamn good. From Software has done it again. And it’s not too “souls-y” at all imo. The only real From Soft staple I’ve noticed so far is amazingly well designed (and often tough as nails) boss fights.