That's basically calling all combat in Souls games outside Sekiro bad
Calling something "not particularly good" isn't the same as calling it "bad".
I think the combat in BB (and souls) is pretty good, just not outstanding.
Demon's and Dark 1 had the most interesting one, because of the unique mechanics and slow pace they had, despite being somewhat clunky, but then they back pedaled on those more and more.
Doesn't make it bad though.
Taken as a whole, BB is surely a great game, and the best FROM title yet, but even then, i roll my eyes at people saying it "ruined gaming for them" or similar bullshit.
BTW i don't think Sekiro has a "great" combat system either, it's super fun and incredibly satisfying, but feels very shallow after you get the hang of it.
Haven't played Nioh, so i can't comment on that.