"They're weird looking dragons, I tell you. They fly really fast but somehow do it without flapping their wings, they have short, fat tails, and when they go really fast they blow jets of fire out their arses!"
I'm taking about r/antimeme type.
A lot of things are accepted there, but usually, it's just when you use a well established meme template completely differently from what is expected. Could be an anti-joke/literal usage of the meme, but not always.
That would be the actual definition, yes. But many if not most people who use the word "meme" to mean "funny picture and caption" don't actually know what the word meme refers to. So they go by some definition originating from Reddit, Facebook, 4chan, etc.
Honestly I feel it was way more exciting in concept than execution anyway. Hell, I think it would make a fantastic TTRPG setting, since it's strongest in premise and has strong ludo-narrative cohesion falling between a narrative game and a wargame.