> I think he/she made it clear it is needlessly replacing parts of the job
Maybe? There weren't any actual reasons for why the author so vehemently disliked all of the technologies mentioned, and there was certainly no acknowledgement of the potential benefits of them.
"This is systems. You are to be trying to be clever. Please stop." is a damn good rule of thumb and I think lots of people tend to go all-in on k8s without considering whether their use of the features will actually justify the level of additional clever so introduced.
To me, that being the 'actual reasons' was implicit from the rant - I don't disagree that it was a rant rather than an argument.
The author is arguing that simple, easy to use, and easy for hobbyists and upstarts to learn tools are being replaced by complex systems designed by and for the 1% of companies who will actually need the complexity.
They are arguing that "House Builders Inc" has invented an automated robotic nail gun and is encouraging standards industries to recommend the only things built with such a system are compliant.
Maybe? There weren't any actual reasons for why the author so vehemently disliked all of the technologies mentioned, and there was certainly no acknowledgement of the potential benefits of them.