We did tge tag team tournament when I was GM...didn't really turn out well tbh. People just need to create more stables as it's WAY more fun to be in a team than it is on your own. You have more characters to work off then, hence why I am usually in one.
Divas wise, that I have no idea on. XWA went through a unique couple of years where they managed to get a lot of actual female fedders in. Ever since then, it's been a division that's made of of secondary characters from us lot. I too have always preferred there to be actual females fedders rather than just the guys making divas...
I guess half the answer is advertising, I dunno'...