When I see Alpha power? "Meh, must be nice."
It is, I enjoy playing with them. That being said, I was very lucky to be gifted the set many years ago.
As a vintage player from Australia, I can say that there are very few sets of power in the country. When last I counted (about 4 years ago), there were between 60-80 sets in the entire country. Australia is a large country with a tiny population. The largest sanctioned vintage events top out at 40 players; most big events fluctuate between 16 and 24 players. Proxy-friendly events almost never go beyond 12 players. The sad truth is that there is a lack of interest in the format.
Before moving to the US, I coordinated vintage in Sydney. Since moving, events stopped being scheduled, and the community disappeared. Proxy events can help smooth the transition curve to vintage - in my experience in Australia, this was unfortunately not the case.
In response to the OP: yes, and no.
I experimented 6-7 years ago with running 100% proxy events in Sydney, Australia. These events allowed a vintage community to be maintained, but, regardless of my efforts, it did not grow the player base. When I moved away from Sydney, the community collapsed.
A vintage meta-game is laudable. There's MTGO...
The reality is that vintage is not for everyone. Whilst I am certain cost is a barrier to entry, I am skeptical that going 100% proxy would drive significant adoption. I would hate to lose what little WOTC support there is.