[Ref in PA]

LEAVING COURT FOR UNAUTHORIZED REASON CHANGED TO VIOLATION (9-3-2): The rule for leaving the court for an unauthorized reason has been changed from a technical foul to a violation. Leaving the court during the course of play has been increasing with the former penalty of a technical foul not being assessed. Typically, this play is seen when an offensive player goes around a low screen, runs outside the end line and returns on the other side of the court free of their defender. The violation will be called as soon as the player leaves the court. The committee hopes that changing the penalty will increase the likelihood of the infraction being called and eliminate this tremendous advantage.

That phrase in the comments is ambiguous to me. Certainly it could be interpreted to cover all live ball situations, but could they have meant only a live inbounds ball, knowing that throw-in provisions and rules are already in place?

My opinion has not been swayed.