Does the community have the resources to allow tournaments to choose their own rules? Can some tournaments choose to have RNG, and some don't? I can understand if the players want as little RNG as possible, but I feel that tournaments with more RNG would attract more viewers.
Again, it's not about having little RNG. It's about having game deciding RNG tied to low percentage of occurrence + almost no player input involved.
Even in something which is exclusively RNG as card games such as Hearthstone, they moved from over the top RNG cards like Yogg Saron been viable in favour of a bit more control in how wide the RNG can be (discover mechanic).
Regarding viewers and more discruptive RNG i beg to differ based on popularity across the whole Esport scene.
FPS: CS GO, Rainbow 6, Valorant, OW, CoD
Fighting: SF, Tekken, Smash (never played with items)
MOBAs: DOTA, LOL and all other smaller scenes.
Sports: From racing to football or something like Rocket League.
RTS: SC2, WC3, AoE2
TPS: Fortnite/Pubg
Other: WoT/HS.