100T came back from 9-3 down on T side.... its usually on T side that teams start on CT side
The whole game doesn't shift from 1 match. There are plenty of pro games where people dominate Split in attack and then the opposing team reverse sweeped them back on attack too. It's not the game. The vast majority of T/CT sidededness comes from the teams and how they play with the only real exception being split maybe. And even there, the win rates are nearly 50% there too on attack/defense across pro play if I remember the stat correctly