What exactly do you think "medically affirmed" means in the context of those accounts? Does being medically affirmed constitute evidence of a miracle? Most any person a doctor treats could be considered medically affirmed as to condition, prognosis, treatment, response, recovery, etc. Even the dead patients.
Can those anecdotes about unexpected positive results be shown, beyond reasonable doubt, to be the product of a real miracle? On what evidence can that be shown to others? To me? In the case of CRSPR, there is clear evidence of what was done, the methods, and the results.
In other words, "medically affirmed" means that they understand it wasn't a "medical" induced healing. It was a miracle.
Of course, if no evidence is good enough evidence and we always have a reason why it wasn't a miracle... then no evidence will suffice in the first place.
In other words, If (and I did) I had a consistent (probably once every 2 - 3 months) "I'm perfectly fine one moment and sneezing, watery eyes and snotty nose in a couple of minutes", and prayer was given and it never happened again... If you don't believe it was miraculous in nature, you will find a reason why it wasn't.
Or, (and it did), I have my baby in my arms with 104 degree fever and I say "Lord, I can't afford the hospital, but if you don't do something, I will have to take her to the hospital" and 5 minutes later she is normal, if you don't believe in miracles you will say "coincidence" or side step with "Why didn't it happen too (insert a name".
Or, (and it did happen), I am laying on my back in excruciating pain to where it took me 5 minutes to roll over and get on the floor dragging myself saying "By the stripes of Jesus I am healed" repeatedly and went from dragging to crawling to standing to by the time I got to my door it was completely gone... You can say whatever you want if you don't believe.
Or... how many examples do you want? If you believe, it should be enough, if you don't, no amount of evidence and "medically affirmed" examples will suffice.
It is what it is. Or, as Jesus said, "be it unto you according as you have believed". You don't have to believe in miracles and you will never get one or, you can believe in miracles and receive one. We all will die eventually anyways, I just plan on it being later an not sooner.