I agree with you, that the explanation why that can't be globular clusters would be much more helpful, but if one wants to get it, they'd better do not say things like "globular clusters are not even mentioned in that article, which is weird." People see such statements and answer to them.
When you're asking a question you need to be focused on your question, a little slip can lead to results exactly as we see. If I was asking that question, I would mention my disappointment with the lack of mention of globular clusters, but I wouldn't call the article weird because of this, I'd rather mention my limited knowledge of astronomy and my curiosity and my hunger for knowledge, and I make it clear that these are the reasons of my disappointment, not the bad work of the authors of the article.
The comment at which the snark was direct is a bad comment (the writer does not know enough about astronomy to make any weird feeling he has about an astronomy article to be the least bit informative) but I'll downvote comments like that rather than try to defend snarky replies to them.
Many folks on HN, when encountering non-"tech" articles in the sciences, have a somewhat distressing habit of plunging toward assumptions which suggest that the people in the article have failed to look for the obvious and/or are decades behind in what the subjects know. This is especially sorrowful, because who among us hasn't suffered through someone asking us, in our specialty, "Why don't you just hit the EASY button? It's around here somewhere! You're making this sound hard!"
Because, as a lay person, I’ve heard of globular clusters, and that means several experts in the field not talking about them points not to “weird”, but to “nope”.
Anyone with JWST time slots knows what a globular cluster is. If they say it’s weird and unexplained, it probably is at present.
And I would add that perceived competence does not preclude elementary solutions or problems. We're all humans, and humans are entirely prone to silliness, regardless of our credentials. NASA lost a near billion dollar Mars orbiter [1] because nobody, of the thousands of highly credentialed people that worked on that project, bothered to ask, 'Did anybody make sure that all components are using the same measurement system (metric vs customary), run a sim, or at least sanity check the data we're getting back?' Because surprisingly, the answer there would have been "no."
JWST is seeing brand new things; globular clusters are so well documented as to be part of the original Messier catalog that predates the United States.