Please don’t because it incentivizes class stacking, to bring extra buffs and the speed running community will absolutely abuse it and make it filter down into the meta to make the game worse. Make content for the content let the social issues be solved socially.
Daddy blizzard doesn’t need to solve every social problem for you. You can also run with 19 and likely be fine as well. People in vanilla used to do MC in 20 man splits for bindings and everything assumes everyone was worse back then.