Why is your response so pithy? Google invented the term SRE, and I think how they use SRE is pretty relevant to the discussion.
You didn't look around very hard then. I acknowledge that certain areas of the company can consistently use subsets of a role, so you may not have encountered it personally, but your view is definitely wrong about the role in the company as a whole.
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.