Well, yeah, but the first "plus-sized" female model that hit it big was a size twelve, which is a size below the national average, so... kiiind of the same factor. Hopefully we'll see more shape diversity as we move on.
The average "plus sized model" is a size 8... They are usually athletic, not fat. However, the male equivalent would be a man under 6 feet tall. (because male models are usually between 6'1" and 6'4") So now all we need is a derogatory term for a perfectly health man under 6 feet tall and we will have an equivalent comparison.
https://www.theguardian.com/fashion/2016/mar/29/zach-miko-male-model-plus-size-body-image-fashion