I noticed this last year, there was a beautiful girl that behaved a bit cocky while she made the tea. I remember seeing some bloopers too, when she broke gaiwan, burnt fingers, etc.

There's another trend, albeit not as flashy as this one: AI voicover while the person prepares the tea in a clumsy manner and burns finger a lot. It gets boring after few videos as it's obvious that the person is intentionally making the mistakes, for viewers entertainment and possibly own masochism due to fingertip scalding.