@circul The AF site has been "Under Construction" for many years now, and I would be very surprised to see it come back.
As for the content, the site owners decided to take a gamble and make nearly all the videos as streaming only, with Digital Rights Management. At the time, DRM was a largely effective way of preventing duplication / sharing of files, and subscribers only had access to the files while they were active payers.
Apparently, not enough customers were willing to pay ongoing, without any hope of downloads, and the site went under.
I think that many of the models were, indeed, actual soccer (football) players from the lower leagues in Central / South America -- the site had pics of models on the playing field and team photos that looked -- as the name implied -- authentic.
Perhaps the players' fear of discovery led to the protective DRM format, as well. You would think they'd release DVDs, which would have likely made a small fortune.
There are a handful of AF vids that were available in mpg (or whatever was popular before they folded circa 2007). But, as the site owners were so proactive against losing "control" of videos, I would bet they were also at the vanguard of sending out DMCA takedown requests.
And that's why you rarely see AF clips -- which is, indeed, a pity.