Yes, mark the year (2016) at the AMA Motocross Pro Nationals, Ken Roczen shows great balance and control though corners by keeping his feet on the pegs, even in deep berms! This has been done a little in the past but not as much as Ken has shown. With all the media coverage it’s most noticed now, also.
I have taught this technique starting way back in 1992 but only as a practice drill. Here’s some video from my video production in 1992 “Making the Rider and M/C Become One” You can order the complete DVD from this link. Many more motocross training DVDs!