I wouldn't call Maia a freak of nature, he's just a guy who saw the writing on the wall and took his training seriously.
lack of talent or ability isint an adequate explanation for why bjj guys always seem on the back foot when it comes to acquiring dominant position. it seems to me like there is a pervasive psychological block in the bjj community on the question of training stand up: 'its hopeless', 'there will always be someone better', 'I'll never 'catch up' ', 'im a 'jiu jitsu' fighter and its not 'jiu jitsu' ', its all 'attribute based', or 'nontechnical', so 'there's no point training if you don't 'got it' already' (which raises the question of why wrestlers bother to train either, but who needs logic), and et cetera et cetera.
in another story, people in other grappling disciplines often espoused the virtues of leg attacks, while they were of course poopoohed in the mainstream jitsusphere. but of course, given that their virtues are self evident and a matter of immediate practical experience, it was only inevitable that there would be breakouts. and now that a few fairly high level guys have now done so, it seems like people are now falling over themselves to dissimulate previous attitudes and 'rechristen' leg attacks. obviously i dont think this newfound interest is wrong in of itself, but feels as though there is, shall we say, a taint of slime about the whole business. perhaps they are thinking: 'thank goodness, finally I have a better excuse for not bothering to stub my toes in scrambles'.
so what we have are two different reactions to two things that both have successful examples and both having little history heretofore in bjj tradition; Gracie, sport, or otherwise. what this tells me is that what lies at the heart of this issue is a defensive mindset that has difficulty imagining itself succeeding at being proactive.
here's the thing, a guy like Ben askren is just about as opposed to what you might call an 'explosive athlete' as you can get, and he's also a guy who was NCAA champion, and represented america at the olympics. here's another, guys like Ben askren, or any other medalist, are one in a billion talents. the scene is full of guys in the same situations as each other, and if one of them took their stand up training a little more seriously, they could enjoy the same advantages over them that wrestlers do already.
as long as these mental blocks persist, it really *will* be pointless, as you trap yourself in a self fulfilling prophecy.