Looks like stylization. Not sure if you've noticed, but the whole RG line is a bit stylized. This one pushes that a little further, the design is noticeably different even at a glance.
I'm really not sure about this one. I'm not really feeling the redesign. And I have frankly never liked the Rebuild face/jaws, I think it's one of the biggest things they fucked up from the original TV design.