What really tipped me off was 1. the anime quality of that scene compared to the rest of the episode. She always takes the budget when she's there.
In Sakura's episode, she had a scene with a kimono or something and the quality was better than movie quality. Her boobs were so emphazised on and huge they were all over the place. And she didn't even like wearing that. It wasn't her taste at all, and her fashion sense is stated in the DB. I question why a woman's uncomfortability is sexualized and why she's casually wearing as revealing clothes in TL. The answer is she had to because she got upgraded from side character to love interest so she had to throw away the sweatpants.
In short I don't hate Hinata I feel sorry for her because she is SP's favorite doll.
I think a quote James posted a while back is spot on:
"You see, whether you can draw like this or not, being able to think up this kind of design, it depends on whether or not you can say to yourself, ‘Oh, yeah, girls like this exist in real life. If you don’t spend time watching real people, you can’t do this, because you’ve never seen it. Some people spend their lives interested only in themselves. Almost all Japanese animation is produced with hardly any basis taken from observing real people, you know. It’s produced by humans who can’t stand looking at other humans. And that’s why the industry is full of otaku!."
-Hayao Miyazaki 2014