I think they aren’t crying about it being CGI, but rather that CGI doesn’t look great. I’m personally torn on this. I like the animation and the short itself was pretty good, but the model looks a bit weird. And because it’s off by just a little bit, my brain goes “that’s not Pinkie Pie” and it kinda puts it into a weird uncanny valley, which I didn’t know was possible with stylized characters, but here I am. I don’t think it’s trash, like some other people do, but I’m also not entirely happy with it. As i said, I’m torn.