Banning unlocking is definitely required if doing all allies since just getting Osmond unlocks all prior allies as well. I think having a new category is fine since it'd show off a new, routed out glitch in a run,though I have no interest in doing it as I've had enough runs crash from broken daggers.
NCW used to be called Town% because it required building each town in it's minimum capacity to progress, but also had no precedent to add a rule explicitly stating that. So most people wouldn't know that skipping building the towns isn't allowed but that was always the rule, with a vote for an exception to unlocking dungeons allowing skipping Dark Heaven atla as it's not needed for a town. I think it could add an interesting dynamic to the run although I don't think this has been tested on console yet to see if there are crashing problems, so far don't see why there would be. But if this did get it's own category it'd need some rule to explicitly forbid unlocking locations on the map otherwise it'd just be pointless as the True NCW can do this and more faster. The current ruleset for NCW does need updated for more clarity as the rules are quite vague atm, as "any derivitive of skipping to the credits" has an unclear definition.
Kind of chiming in late but I think the 100 floor glitch should be allowed since it's more of a skip rather than a warp. This just unlocks floors and you have to collect a lot of the georama anyways, so it can only really be used in the latter half of Shipwreck and the Gallery. Totally didn't just wait until I got it to work for me or anything.....