Those titles are ridiculous.
And it’s just an opinion.
Do I think Nicki or Wendy are such ? No. People speak these words very easily these days.

Wendy is quite unknown in the rest of the world.
Nicki’s peak is in the past. She might be known worldwide, but she isn’t this huge superstar either.

Mariah deserves those titles. So does Beyoncé. Nicki ? No. But that’s my opinion. Everyone will have their own point of view. That’s why I think those titles are stupid. Just like award shows.