The disconnect here is probably that a lot of arcade game enthusiasts don't see them as "bite-sized experiences centered around twitch game mechanics", and many don't even think that the days of arcade gaming ever went away.
I don't dismiss mobile gaming. I don't think there's anything inherently wrong with the platform from a hardware perspective (as in, it's not significantly more or less flawed than any console or handheld), and any game-ruining monetization schemes should be judged on a game-by-game basis, but I wouldn't suggest that mobile is where the best modern arcade-design games are. Not to the dudes that tear Daytona USA inside out, the dudes that single-credit clear 2D shooters and belt-scrollers, the dudes that play fighting games competitively, the dudes that AAA the hardest songs in IIDX.