I think this is unclear. I'm suggesting that having just all Taiko or CTB (if it's allowed) only maps to be unrankable, because ranked maps should contain at least two map that is playable in standard. This needs to be appended somewhere that the mapset needs at least two standard difficulties.
Taiko/CTB Only mapsets should be allowed for approval though.
Taiko/CTB Only mapsets should be allowed for approval though.