Spock’s engagement came as a shock to everyone in Amok Time and that was part of what made the episode interesting. It was not some obscure detail. The storytelling in TOS isn’t boring, especially not Amok Time, one of the best episodes in the franchise. As for the social commentary this episode did nothing new so I don’t know what you’re talking about.

Also, narrow social picture? The new shows have been pretty timid in this regard, far more than TOS was for its time. Picard gave us an uninteresting token lesbian relationship that no one can care about and Disco gave us a non-binary character who had to explain her use of pronouns to the characters. Buckle up, non binary people, you’ll still be weirdoes 300 years in the future, according to Star Trek at least.

Advice: if different opinions about a TV show bother you to the extent that you feel the need to insult those who have them maybe it’s time to disconnect from social media for a while and come back with a cooler head.

Edit: I know that if you are a younger fan you probably have not watched TOS and your limited exposure to different kinds of media probably makes enjoying it a tall order for you; it might as well not exist. You should keep in mind, however, that many of us genuinely enjoy it and you have no right to call us pseudo-fans just because you don’t like it.