I don't think anyone intentionally goes at someone's face. That's generally low percentage. At least I've never met anyone that has done it intentionally. But I've taken lots of shots in the chest and belly. Stings a bit. But less than a squash ball or hockey puck.That was Lendls philosophy. Nobody invited you to come to the net.
In professional sports this kind of thing happens and I don’t know that there’s a lot we can do about it. In rec tennis there is absolutely no excuse for hitting the ball at someone’s face. Sometimes a body shot is the right shot. But never high.