Wow steamy~

This art style was pretty hard to look at. I'm not saying it's bad but there are no shadows or shading so it just looks very....bland?

Yeah, it's overly simplistic, kinda like some of the simple CGI rendered animations and games. It's almost like they traced over CG renders.

So I'm not the only one who thought that, I was wondering why it looked so awkward like CGI

I took a second look and some spots really do come across as looking like CGI to me too. From a technical standpoint, I don't even think the artist would need to trace anything, just tinker with some settings and get white characters with black outlines.
Honestly, I'm not opposed to the use of CGI, but even if it's not the artist needs to work a bit more to make some of these poses look more natural.

This art style is making think CG or like a video game