Really, I think Any% (OoB allowed) should be a misc category, since it's incredibly difficult and also entirely random without being RNG. Plus, it saves much less than half a second of you get a clip first try. So personally I think it belongs as a misc. category or just not at all.

clips can be used to skip portions of levels, not just to save half a second in getting to a platform faster. The no OoB catigory bans the major clips and while it is difficult it should be a normal catigory as every other any% catigory seperated from a no OoB catigory

Do you count loop skips as clips? That's the only think I can think of that would be more than half a second faster.

no. You can jump into walls and skip major portions of levels which is why it has its own seperate catigory