I do hear that a lot. "Hey, female humans are fat lolz !" and "Wuuuut, female belfs are too thin !"
I think they're both fine and look pretty normal.
Subjectivity my friend. For some people, belfies are the closest thing to normal.The issue is the people have their views of what is healthy or normal so warped that they see "fat" everywhere where is none in surplus. I wish we had more normal women around in fashion and less unhealthy skin jobs.