A couple things about that video (and I do like Collectible Spot reviews!). To start, as far as the color is concerned... I think his White Balance is off. For those who aren't photographers, not only is lighting crucial, but each type of lighting has its own temperature which in pics/videos affects the color. When the white balance is set correctly on the camera, colors look as they should. When you look at his recent vids that show his SS Jason, you'll notice that Jason's shirt looks substantially more brown than the figure in-hand (which is more of a green). Because of that, Freddy's sweater also looks like it has brown/black stripes instead of green, and it likely has an impact on the color of the face/hands as well.
As far as the hat is concerned, I'm thinking it's a no-win situation. First off, SS never said that hat was removable, so I figure no one should be surprised by that. Second, 1/6 fedora-style hats seem to be a tough thing to do well. When they are removable, they are invariably too big or look off (even the HT Indiana Jones isn't quite right). I can only guess that it's because material used to make the hat would have to have some elasticity to it to make it look right. But on the other hand, if they are part of the sculpt, people complain that it isn't removable. The best option would have been if SS had included 2 sculpts (hat on, and hat off). I'm still looking forward to getting this in hand!