I didn’t hear a single thing about the game until after it was already dead, and that’s why I’m not surprised it flopped.

If they’d done better(read: any) marketing or public testing, then it might have been at least salvageable, but from what I’ve read it seems like people weren’t fans of the character designs and gameplay either.

By definition? No.

But if there was a situation like that, I’m willing to bet people would default to using the “first” title anyway out of custom.

“First Grandchild” has been used previously (mostly tabloids), but I think the “first” term is usually limited to immediate family