Why isnt Snes9X allowed?

almost every snes game I see allows it. Im just curious because if i have to i will use the only allowed one

I will be looking into snes9x and other emulators in the near future. I see now that we haven't re-evaluated the current ruleset for snes doom in some 5+ years. It's just me at the moment and I recently got a new job where I'm working almost every day, but the goal is to possibly open it up to more user-friendly emulators.