The shortstop thing was nice, but the bat isn't much of a breakout. The guy has hit .316 and .322 the last two seasons.
There's a bigger jump from the GCL to the VWL than you realize. And the fact that he played SS constitutes a kind of defensive breakout in and of itself. If he's passable over there, it makes him a far better prospect as a utility player than he'd appeared at first glance.
Add it up, and it's a breakout, of sorts.