Coming out of Oklahoma State, Jenkins had a great combination of physicality and athleticism. His back and maturity appear to be the major concerns, and I can't speak to the severity of either, but in terms of on-field ability, Jenkins was a really good OT prospect.
It's very concerning that a team that desperately needs OL help is willing to trade him. Hard to overstate that, but it's possible he just got off on the wrong foot with the new FO and coaching staff.
Because I liked him a lot coming out, I'd be somewhere between excited and cautiously optimistic about trading for him, but because of the back and maturity concerns, I'd understand if Miami passes.