1
The slow-mo confirms that Pineda doesn't have any timing problems whatsoever.
He does have some pretty clear hyperabduction and mediocre hip/shoulder separation (which will put more stress on the upper body/arm and limit his velocity potential). While his followthrough is solid in the slow-mo, its inconsistent and mediocre at times in the first video - In particular #1,#4,#5 deliveries he doesn't let his pitching arm deccelerate and it snaps back in a herky-jerky motion.
I'd categorize him somewhere between above-average and high risk considering the mechanics/age/injuries, though hes not a train wreck by any means. Most likely hes a reliever, but he should stay in the rotation until proven otherwise.