Why is your response so pithy? Google invented the term SRE, and I think how they use SRE is pretty relevant to the discussion.
It’s cause they don’t know what they are talking about.
Easier to shit on people and things with hot take then actually have a grounded and coherent argument or realise that different companies/teams have different constraints, problems and environments they operate as well as different solutions.
Oddly the industry mostly rejected googles application of SRE even as they adopted the term. I've only seen Google use it to refer to engineers maintaining / operating someone elses code.