Why should we change our feelings on what's desirable to us? There are millions upon millions of unrealistic things in all of fiction that people idealize. Someone that's unusually just, someone that's unusually smart, are idealized. People that have lost an eye and wear an eyepatch look cool but no ones arguing that such characters are causing kids to poke their own eyes out and so they should be demonized.From the interview, it sounds like it's more to do with presenting an unrealistic body image as desirable. People levy the same complaints at plenty of airbrushed Western model-shoots, advertising, and pornography; it's not exclusive to anime.
The fact that somebody has that body type is kind of beside the point. Of course some people do really have those hourglass figures. The argument is that if those idealised body types become ubiquitous in what we see (as they are in Western advertising, for instance), and it becomes almost all we see, then it starts to promote unhealthy expectations.
I suspect the argument around Uzaki is partly because she's one of many.
If someone can't recognize that there's a difference between reality and fiction then they have much bigger problems that do not originate from the consumption of that fiction but within themselves. Women themselves engage in the consumption of trashy romance novels with unrealistic descriptions of men, why are men's interests always the ones with targets on them?