Yeah I played RTS games, including both starcrafts, through my mid twenties (really hung on to the damn things) and was pretty good (got to diamond and stuck there in sc2, which is another animal entirely from pro tier. High school pitchers rarely need special shoulder surgery), and I never needed hand surgery or even serious carpal tunnel help.
Until I was in a position where I had to use office shit for ten hours a day. Then I needed physical therapy for about a year. I think with the games, theres time during matchmaking and loading where you just have to move, even in your seat. Its a whole thing.