Seems like it could be fun. I'd run it if it were available (might do runs of it anyway).

because greed mode sucks

Hello emeraldaly.

Official categories are based on the things that people actually speedrun. When a bunch of people start running a new or novel category, it becomes an official category. If you want something like "7 char Greed Mode" to become an official category, run it yourself, highlight your PB videos, and get a bunch of other existing speedrunners to do the same.