You’re right, Syag, I haven’t looked it up in Halachah, I’m just relating what I heard (again: heard) mentioned in Seforim regarding the Segulah, or Inyan to have meat.
My reasoning, again it’s just my own, and it is of course subjective. And I too do not think much of cold cuts etc. other than a nosh. What I was trying to say was that generally an important seuda would consist of fleishig. Think of a wedding, Bar Mitzvah etc. Of course you could get around making it pareve (never heard of a milchige chasuna), and serving such delicacies as you’ve mentioned definitely makes it more special, to me at least, making it fleishig (real stuff) puts an especial “mark”. A dagash. You don’t grab a chickale and bite while on the run, no, one must sit down (next to friends) with knife, fork, napkin, a set table etc. To me that’s a Matzav.
Again, it’s my own feelings.