You think that’s gonna work in the playoffs when teams are doubling Embid and sagging off Simmons?Even if he was willing to shoot more it'd be a non-factor. Tobi or Joel are getting the last shot. It's worked so far, Sixers are one of the best 4th quarter teams in the league.
Who gets the last shot is obviously important, but so is being able to shut down the other team's best perimeter scorer.