champs idea

for every international (or maybe only champs), make the upper final bo5 and keep the lower final a bo5 as well, then make the grand final a bo7 where every single map in the pool is played and the team from uppers gets to pick the first 3 maps played

bo7?? nobody watching 7 hrs brodie

nah we good ain't no one watching a bo7

Im watching bo7 sybau

Due to the extreme, sometimes 6-7 hour (Yeah yeah, haha, 67, shut up-) duration of such long series, organizers typically favor Bo5 or Bo3 matches to avoid exhaustion for both players and viewers
A cs tournament tried that, it was mouz vs hellraisers. when they got the the final, Mouz got 1 one map default in the series, so the game started with mouz up 1-0 because the tournament organizers realized how crazy it was to go to 7, so they had to give the upper bracket team an extra map to shorten overall playtime.