They could simply remove modes (or banish them to occasionally reoccur in the Arcade) after they “died of natural causes” and at least keep the former main mode as a secondary option when switching to a new one.
But instead they first deleted Open Queue competitive just to bring it back month later and then they did the same nonsense with 2/2/2 Role Q but deleted it completely and are now also bringing it back over 2 years later.
It was already dumb the first time they did it, but instead of learning from an obvious mistake that shouldn’t have happened to begin with, they fumbled it even worse the second time.