There is a direct correlation to how involved Blizzard is with their sports and how bad they are.
Starcraft went without their support and it was wildly successful, until they region locked.
WoW arena sucks ass to watch, but Race to World First is incredible, until Blizzard steps in to save Christmas.
Overwatch had a shot at being special, but GOATS made watching the games incredibly boring, they should have realized that after the first game and shut it down hard. COVID killed the rest of it.