I think it's a function of the quality of the imitation by vegetarian options. Years back I said the same think as the person you're responding to, because the "meat" was in no way a reasonable substitute. It wasn't at all similar to actual meat, so why bother calling it "meat"?

Now that they're getting close, I agree with you and it makes more sense to call it "meat" because it's very close to being indistinguishable.

I love a good hamburger or steak, but I'll happily give it up when there's something not-animal-based that's as good.