I agree that it should not be supported or encouraged...except that it is encouraged, by requiring 48 minutes to train and only allowing one position at a time for effective training.
In my perfect world, training would not be by position, but any 2/4/6 players you choose each week on a sliding scale of training effectiveness. This would also mean we wouldn't have to play our center at point guard to train his passing.
It wouldn't even require a perfect world, just a logical world.
A logical world would be nice. I'd move there.
Unfortunately, Douglas Adams had it right: "The Guide is definitive. Reality is frequently inaccurate."