For sure. But most gaming advice doesn't go quite that far lol, it's usually really practical approaches to situations or ways of dealing with problem players or the like.
Not disagreeing with your decision to disengage, but I personally don't think this "no place" is a reasonable position, supported by any kind of logic. I guess we'll never know the exact reasoning.
There is no need for reasoning. It's a matter of personal preference. There is certainly no logical argument for my dislike of having hand-outs in adventures, or boxed text to describe a room. I'd prefer them not to be there and the sacrificed trees corpses being used for printing something more useful or, barring that, with nothing. Are boxed text or handout useful to some? Certainly! Should I refrain from expressing my displeasure with them? Certainly not in a forum where we discuss these things. I think it's a very apt analogy with the poster's problem with "social advice" in RPG books: it's of no use to him, so he disagrees with them being there. It's not a logical demonstration leading to the logical conclusion of removing or keeping them, but a matter of preference.
Even if people try to respect the opinions of others and find common ground, like, innately, or because they were raised well, they don't always have great tools to do it, or to do it in a gaming situation. I've seen this in action, even. I actually learned a ton about resolving conflicts and managing a group from running RPGs, which I've used IRL for things like being foreman on a jury, running meetings at work, and so on. Some of what I learned I might eventually have figured out myself, but some suggestions in rulebooks got me there a lot quicker. I've seen it with others, too, but that's a long story. Tools make people more capable.
Which is a perfectly cromulent matter of personal preferences. Both your views and the poster you're replying to are statements on what you want to see more of in RPGs products, and I don't think it was intended to demonstrate the superiority of one's preference over another. Having those preference expressed freely is, at most, a useful tool for prospective publishers so they can feel the expectations of their public and try to maximize their sales and less an exercise in convincing other to switch their preferences.
When that happens I try and have a quick session 0 with that player, be it in person before the game, by messages on the phone, on discord... It always helps them get up to speed with what the table is doing, and always gives me cool hooks for their character.
I feel session 0 is intimidating. Talking about the next campaign while having a beer is the usual form of my group's sessions 0 and I think most of us don't even realize it's what we are doing and would be puzzled at the idea of actually having a sit-down session devoted to discussing.