They become a bucket of clichés and abstract terms. Clichéd descriptions of problems you're encountering, like deployments being hard. Clichéd descriptions of the solutions. This let's everyone in on the debate, whether they actually understand anything real to a useful degree or not. It's a lot easier to have opinions about something using agile or microservice standard terms, than using your own words. I've seen heated debates between people who would not be able to articulate any part of the debate without these clichés, they have no idea what they are actually debating.
For a case in point, if this article described architecture A, B & C without mentioning microservices, monoliths and their associated terms... (1) Far fewer people would have read it or had an opinion about it. (2) The people who do, will be the ones that actually had similar experiences and can relate or disagree in their own words/thoughts.
What makes these quasi-ideological in my view is how things are contrasted, generally dichotomously. Agile Vs Waterfall. Microservices Vs Monolithic Architecture. This mentally limits the field of possibilities, of thought.
So sure, it's very possible that architecture style is/was totally besides the point. Dropping the labels of microservices architecture frees you up to (1) think in your own terms and (2) focus on the problems themselves, not the clichéd abstract version of the problem.
Basically, microservice architecture can be great. Agile HR policies can be fine. Just... don't call them that, and don't read past the first few paragraphs.