I basically agree. Playing the guitar with your teeth, behind your back, doing the splits or back flips whilst singing etc etc. A long history of technical achievements that engage an audience and make a show more interesting but don’t really have much to do with the music. The primary purpose was to hook the audience in and stand out from the crowd. TikTok etc have put this requirement on steroids as there is so much noise to compete with. IMO a Bach cello suite played on a fretted bass at 200bpm is likely to get more clicks than a background member of a world famous orchestra playing it normally (unless they were hot and doing it in a swim suit whilst riding a unicycle).
As for whether it’s musical? I guess that’s down to personal preference. Are Polyphia musical? Sounds like arse to me but I like iDLES!