This is also a G-Cannon and there is armor in the game very similar to this.....
http://files.fullmetalsam.webnode.com/200000285-99ee99ae88/ObiTitle.jpg
Also, look at the 80s, 70s, 50s, 20s,... Fashion changed massivly since then. This are 4000 years!
I agree, some of the armor looks a little....mh... strange. And some more Kotor Armor would be nice.
But all in all, they have done a good job with the armor in the game. There is a lot of diverse orange armor you can choose from.