The way that people invert and try to move their opponent from unstable position is really, really unhealthy. I would say that as I've improved and learned over time, I rely on that sort of thing less and less. Most of the things I was doing in early Jiu-Jitsu was because I didn't have the capacity to do other things at that time, at least not against the competition level I was facing consistently (good black belts and up after 2 years of training). I was pretty gimmicky and attribute dependent, wouldn't recommend that longterm.
Ryan war ja immer der flexible Rubber Grappler, der sich extrem verbiegen konnte. Interessant wie er heute zu seinem alten Stil steht. Kann ich aber absolut nachvollziehen.
Und seine Meinung zum heutigen Sport BJJ ist auch interessant:
Most of "modern" BJJ is not applicable for MMA in the way that it's done. There are certain things that are being developed that are fantastic, I think, but more of it has never been further from direct applicability in a fight and the current rules reward awful behavior from a fight perspective. The people you'll see being reliably successful are doing things differently, almost invariably.