Compared to stuff from previous editions the current crop IS pretty smooth....
Just because there's a man-eating plant lurking in the basement doesn't mean that there has to be some connection to the previous occupants or their goings on.
And sure, a baby ghost animated flesh golem might be a really cool concept. But have you
read the stat block for a flesh golem? The XP is the same as a Shambling Mound, but a 2nd or 3rd lv party will have one helluva time even phasing the golem. It's
IMMUNE to non-magical weapons that aren't made of adamantine, has advantage on all saves vs spells/magic effects, is medium sized, and moves at '30/round. So not only won't your party be likely to hurt it, they won't likely be outrunning it either....
Well, on this I agree. Ravenloft, as the one off vampire castle adventure is pretty awesome. But Ravenloft/5e Barovia as a demi-plane of dread setting, is a steaming pile of nonsensical crap. It's like a guided boat ride through Halloween Land.
It was bad in 2e/3x with different realms dedicated to different horror movies/stories. Now it's even worse as all that crap has been squished into this 1 little mountain valley of horror.
When we played it, after awhile my character began commenting on the continuous ridiculousness being encountered. The DM was trying t run a "serious" game. And I'm convincing the other players that it's not real, that it's just a dream....
You know what's going to happen? You're going to spend a lot of effort crafting your own version of perfect. And it'll seem great. Until later when you re-read some part of it, or a player points something out, & you realize that YOU have included some oddity, or omitted some detail, that you'd have criticized WoTC for.
Yeah, yeah, I hear you thinking "That won't happen to me!"