I don’t think there is a single surgeon that hasn’t worked for other clinics in the past, it’s how you cut your teeth and learn. Watching his recent live, he seemed completely at east talking through the processes, whilst doing a procedure. You can tell he takes patient care seriously because during the incisions he cut it short because of the bleeding and seemingly looked like he needed to concentrate. It would appear who ever may have initially trained him has given him a foundation and spring board to do things his own way. There are not many doctors that do one patient a day and do the bulk of the work themselves.
It is laughable that you mention he has some bad results which again is normal, but when pressed on showing evidence you can’t present these. So you deflect to something else.
At the end of the day, I’m sure Melvin would have done his due diligence on the guy! He is young he is gifted, the “newer” generation of HT surgeons seemingly want to be a lot more hands on are producing the best work. Look at Dr. Munib Ahmed! Excellent surgeon probably been doing it the same amount of time as Dr Mani. Just food for thought.