There is nothing wrong with pretty boys in anime. I quite liked the effeminate designs in Mawaru Penguindrum. Plus I actually look forward to watching Tsuritama and Kuroko's Basket in the future. But something about KyoAni doing cute boys feels horribly wrong. I want KyoAni to try something new as much as the next guy. But this is not what the studio needs right now.
Also here's another reason to dislike this idea