I do think your larger point still stands.....
brakeless bmx weirdos > any mountain biker ever
Long time ago when I lived in Asheville there was a local bmx'r who would show up after the annual street comp was over, brakeless, no helmet and completely demolish everything some top mountain bike pros made look cool. He would pull massive no handed back flips at ridiculous speeds on his 20". He'd hit the jumps with way more height than the dudes competing. Never entered a comp, always poached it at the end.
BMX is and always has been so far ahead of freestyle MTB its not even funny. every now and then i still check the come up to see the latest insanity.
disclaimer: the only mtb dudes that are even coming CLOSE to bmx stuff is the guys in the FEST series, but that's only in terms of jump size.