Besides you neglecting half of brosras' counter points, your arguments make no sense, I'm wondering if we watched the same replay. He has never looked into the fog of war and he has lost units multiple times throughout the match where he could have saved them if he was indeeed maphacking. Your suspicions are him sending minesweepers ahead to look for mines, splitting units while approaching a position knowing that there's an mg somewhere and using smoke before a push? You gotta find stronger evidence than that I'm afraid.
i dont know how exactly maphacking works (if you see units on minimap or through fog of war)
but suddenly not rushing a certain area of a map with his tanks without knowing about the existence of 2 raks is suspicious.
and running perfect flanks on mgs, which position he never saw before is also suspicious, i cant understand why you neglect that so easily.
it is a big map, why should he smoke an area out of nowhere? he has never seen that mg before. it is note e.g. like rails and metal where you know the chokepoints.
but i understand, cb guys will never be objective in this case.