I just called the coach of one of the teams and apparently I wasn't exaggerating. They are teaching them to drop the shoulder to drive the ball high to encourage itp home runs. "We want sluggers for the tournament in Florida. It looks bad now, but just wait til they are sending them out!" Me:....Ok good luck with that!
I trust that what you're watching are not good swings. If it looks awkward and inept, it probably is.
But, if they are teaching players to have their shoulders tilted at contact (as opposed to level), then that would be correct, IMO. Hitters should drop their shoulders, just not during the stride or forward weight shift (although I've seen a couple of softball exceptions). Shoulder drop or tilt should occur during the shoulder/torso rotation.
Pujols below is able to create a slightly upward (Nike-shaped) swing path in part because of shoulder tilt.