Gotta agree with the masses here. Tymon style CFOP has a much higher skill ceiling. Using simple, standard solutions, and doing them very quickly is all good until you can't do them any quicker. Using tricks, influencing, and pseudo, well the sky is the limit for that as far as cfop is concerned. It can bring cfop down to be luckier and more efficient than it has ever been before.
As for the future of cubing, efficiency is absolutely the way. Imo it'll be a lot harder to keep turning faster and faster, so solvers like Ruihang that use incredible TPS to get their results will only be successful for so long. Eventually, it's not gonna be about how fast you do the moves, but how many moves you do. Which is why Roux is the best method.