The first one or two bosses are alright, I think. I'm pretty sure you can parry all their attacks. But I can see what you mean, there is definitely a very simple design behind a lot of the bosses in vanilla. None of them were really super fun, but they also weren't really all that difficult so I guess that's why I didn't think too much of it. I died way more to the environment than to any boss, except Isidora. She got my ass like 50 times. Though to be fair I never did the rest of the DLC so there may well be another equally tough boss there.

But yeah, the game seems to really lean into the whole "virtue of suffering" theme - which works great with the story, world building and vibe and all, it's just... not necessarily fun.