I’m old enough to remember the proud, defiant declarations that the internet was just a hype cycle.
It was the very definition of a hype cycle as far as I can see. Hype cycle doesn’t mean “useless and will go away”, you have the second upward curve and then productivity.
Colloquial, dismissive use of “hype cycle” does not usually mean “this will change the world but foolish things, soon forgotten, will also be done in the short term”. Though I agree a deeper understanding of the term can suggest that.