A few additional comments regarding Modernist 3 (Postmodernism):
1. Yeah, I don't really get the joke, so it may require explanation
2. Would it have been possible to give the level only ONE second and then just put a pre-placed lemming directly in front of the exit with no hatch at all?
3. Since this level is intentionally bad, I would imagine that the Lost Art Pieces levels are (probably) better than this one
This is one reason I would support the idea of including those levels as a separate category in this pack (or put this level into that pack). There's also the fact that packs like PimoLems and SEBLems have done something similar (and Arty even included those levels in his YT playthroughs). On the other hand, the music may not be as YT-friendly, so there's that.