I think Blizzard realized this game is too fast paced for heroes who need an extended period to setup to utilize their abilities.
Symm and Torb 1.0 were both total feast or famine, either the team couldn’t deal with the setup or they got steam rolled and had to switch or basically run in with half their abilities to try to defend/attack.
Both reworks, to me, aim to make them more reactive and mobile. Makes sense to me.