What happens if a player finds a major glitch for being able to tp to the saving princess cutscene without using warps and only controller inputs?

It would either be unallowed or be adopted by the community. If you do find a glitch, upload a run with it and see what happens. You could hold the record by a lot. Warpless just means no warps. (To my knowledge.)

Any glitch that teleports you to the princess's room is considered a wrong warp and not allowed.