Thanks for sharing this discussion! I don’t have the expertise to actually say anything useful on it, but I welcome the new perspective.
As for the article you linked, it seems like it was signed by another person. Perhaps their experience and approach was informed differently from the more commonly known current EM theory (that is, that axial elongation probably happens as soon as artificial focal planes are introduced)
Personally, I think there is value in attributing more improvement to accommodation than the initial, quick drop of -1D or so, but I certainly don’t believe it is as straightforward as the OP makes it to be. The documented last diopter experience (and mine is clearly displaying the same tendencies) is that clear flashes become more and more frequent until that state of vision becomes permanent, over a period of years. I can see perfectly clearly, a few times a day at best, but it doesn’t last and I have no idea why, and what would eventually make “good vision” my default. Basically, if this is just a problem of accommodation, why does it take years? If it’s not, what explains the more frequent clear flashes when pulling focus or clearing up double vision?
I still like their analogy, mainly because I’ve been trying to become more flexible and it is absolutely not working. It’s not as simple as starting to use underused muscles (provided you know the anatomy well enough to know which ones they are), there is a deeply complex behavioural and cognitive element to it that always eludes me.
Higher diopter myopia behaves differently and I find it easy to accept that the slow improvement is due to some reshaping of the eye. It just “makes sense” in that the speed/pattern is typical of biological adaptation (like weight loss, or muscle building)