It's more or less the same interface as Netflix's other smart TV apps, as far as I can tell. Looked just like this on my Samsung TV and my LG WebOS TV. Not saying I like it, I'm just used to it enough to not hate it, anymore.
Edit: What I'm trying to say is I believe the previous AppleTV version is just outdated.
Edit: What I'm trying to say is I believe the previous AppleTV version is just outdated.