That comment is not only there for you, the OP, to read and perhaps hopefully act on: improving the question according to some standards. As you commented on main "I understand that you want to have some rigor for the site but based on the standards of quality for SE in general". People coming newly here and looking at older questions should also get some guidance out of old content on how to ask a good question.
It should also serve as some kind of prophylactic: to prevent a commonly seen behaviour: when new people get this kind of comment and don't like it, then they look at prior evidence, or lack thereof, and likely point out "why me, here, but not there"… This uniform comment might prevent a bit of that.
That comment should also not be read as directed at anyone's personhood or "value". It is about and directed at the content. To be honest, I didn't recognise your username and here on meta you do get the automatic "New contributor" badge attached. If any of these facts were different or even reversed, I wouldn't actively form any such value judgement of good/bad person. I doubt that the comment on main by Mark reflects anything like that personal value judgement.
That comment is a boilerplate one, standardised and mainly applied indeed to posts coming from new users/low rep users, who post questions that do not reflect a desired quality standard. The intent of this comment is be as friendly as possible while still insisting on raised quality, or a "better post" by making suggestions on how to achieve that. Objectively, the question lacks "prior research", and in my opinion this decreases automatically from the quality this otherwise interesting core question presents.
That comment is a boilerplate one, standardised and in this case perhaps not entirely correctly applied.
When I see the rep of the poster on such an old question, I would have probably dropped the "welcome" part as not appropriate to the situation. (You've been here for a while, and hopefully already know that you are welcome here, or that we try to feel you welcome here anyway, like all users…). However, that is my reasoning for an old question. If now a veteran user and regular would ask such question in this way anew, lacking own research, then I would tend to leave the "welcome" in.
This "veteran status" is often hard to ascertain. I usually do not check for that, don't go to personal pages, etc. If anything of the above is done on mobile, that interface and the small screen are really great to facilitate making plain errors along the way as well.
In short: please don't read that comment as ill-meaning, and be sure that it is not directed at any person.