What I see in that study is, in my opinion, a unique & Scientific window into PE - and probably more of one than we’re likely to see in the near future.
While I realize that the “trigger” was pathological (severe priapism resulting from SCA), the mechanism, I believe, explains any type of penile enlargement. Think of the “trigger” as the stimulus - not the end result. A man can get blisters on his hands from grabbing a hot pot or swinging a pick all day (the trigger can be different), but the result (blisters) is the same.
While his “trigger” was illness, ours is PE. And he did what guys here can only dream about: he increased his girth by (probably) 40-50%. * After 3 years of PE, I managed only about a 20% girth increase.
I believe their studies & thermal imaging, and blood work, etc., probably gave them quite a perspective on why his unit ballooned so massively (and “ballooned” is the right word).