I love kite foiling waves and can't get enough of it. So much more to discover! Per earlier mentions - go to school on Oyvind, Adam Withington, Fred Hope, Kai Lenny, Ketos, BRM, Horue and Core rider vids and give it some time – foil surfing will evolve into much more complex ride sequences as more people push the envelope. Wings and boards will evolve in parallel as manufacturers get inspired by watching these guys.
IMO a strong kite/foil community also drives progress. Here in Boston we have a lot of people getting into wave foiling and as a community everyone inspires each other to advance. At this point, thanks to other riders, I'm able to to spray the lip (at times) and do kiteroll backloops, reverse slides, and occasional megaloops on decent size waves. We just need a videographer to share a few decent vids and put them online. I'm sure there are others pushing it at any given time somewhere else.
Experiment with various boards, wings and kites. Slow down on the wave when down the line. Get to know the nitty gritty of your kite control. Try different positions on the mast track, beef up your leg muscles, work on your body's flexibility, while foiling more waves instead of writing posts about what's not possible.
P.S. (super secret tip)
Electric skateboards like Lacroix Lonestar, Bamboo Evolve GT, Onewheel and oldschool Carver skateboards allow you to work on the same wave techniques on land, essentially doubling your time learning while keeping that kite and foil stoke. It's not a coincidence that you see Oyvind on the Onewheel before nearly every session.