So she actually said that she does not see the appeal in Senshi at all and that the panty shots weren't intended to be horny - she just has a neighbor who looks kind of like him and does laundry in his underwear. Which she finds kind of weird and offputting, and put into his character to be funny.
But that's the thing. She doesn't exaggerate or grotesqueify or alter people's bodies to fit some standard. (Except insofar as she draws different species differently, and those are exquisitely practiced to ensure they have the same diversity of appearances that humans do.) She just presents people exactly as they are, complexities and oddities and all.
It just so happens that when you present people exactly as they are, what you present will be beautiful and alluring to many. Even the things you yourself might find weird and offputting. Honestly I think it's a touching example of how you don't have to see the beauty in everyone for the beauty to be there, simple honesty is enough to let the wonder of people's humanity shine through.