I wasn't thinking side ways surfing/wakeboard stance around buoys but proper one foot in front of other stance on a self powered ski.
Maybe that'd be just feel too weird. Thinking about it now is slalom, trick & ski racing the only sports with single ski/board where the rider faces forward? Skateboard, surfing, snowboard, windsurf, foiling, etc are all sideways stance.
Anyways it looks like fun and if it removes some wake and surf boats from public lakes it's a good thing!