Did you just post the MLBTR article without even reading it at all?
"Close, Aiken’s agent, told Rosenthal that his client “has been seen by some of the most experienced and respected orthopedic arm specialists in the country, and all of those doctors have acknowledged that he’s not injured and that he’s ready to start his professional career.”
"Drellich spoke with an expert orthopedist — Dr. Chris Geary of the Tufts Medical center, apparently not among those who have seen Aiken — who tells him that a congenitally small UCL would not necessarily indicate a greater risk of a UCL tear or lowered success rate if a TJ procedure became necessary."