LoB yeah, on small scale perhaps, I guarantee you will end up with a cluttered mess on large applications, unless you spend a ton of extra time/work to design for scale, maintenance and dev onboarding.

I do not agree with HATEOAS, so now you have an API which job is to produce html (SoC problem), and what if a Flutter app also needs to consume this API, do you build another HATEOS API just for Flutter?

Every few years its the same, devs adopting and defending the new shiny thing, though I have to admit, I love that this time its a way more simplified, sane alternative.