after skimming over everything in reddit and this thread very quickly...
1. the real issue is the possibility of malpractice. that should 100% be looked into confirmed one way or another.
2. bad results happen. if he's not happy with the recipient site, its unfortunate but it happens
3. the changing of the strip size is another thing that needs to be confirmed. he chose FUT, he should have been aware of the risks of stretching, but altering documentation after the fact, multiple times, is another red flag that needs to be addressed and confirmed one way or another.
following