I don't think the OP said those things were pointless, only that they are already actively used in industry standard approaches.
FWIW I agree with the assessment, the terms are broad, generic and have no specific connotation for gamedev. It's not oriented at anyone in industry since you'd talk about specifics and not the "cloud", "ai", or "blockchain".
Your failure to, as you admit, see these topics as anything other than "buzzwords" all but confirms my original opinion of a cultural skepticism.