Except these ponies are ugly. They look deformed. There should be some sort of mid-ground. It's like they're trying to make them look like something else entirely.
It's a cartoon, dude. The proportions are typically either exaggerated or different from real life. If you don't like it then don't watch it, but a realistic aesthetic would push away viewers.
It's not really a complaint. It's a preference. I grew up with the original ponies, so I favor their design over the new ones. That's all. Plus, I prefer the older pony characters, like Lickity-Split and Princess Ivy. They had a cute design.