Disclaimer: I'm not picking on YOU here

I think your pictures are great example though of why people need to take this "Gamma 0" advice with critical suspect. Look at the background. This isn't a 1:1 comparison regardless of what that other user (or whomever started the Gamma 0 line of thinking) says. It's changing the gamma curve, so you'll see shadows crushed with less detail, a lot more contrast (this is not necessarily a good thing. Mid tones will be destroyed) and playing the game this way would not look good, even if it allows you to match skin tones from the benchmark.

I caution people to save their choices but don't fantasia right away, make a temporary character and load in with that to see how it looks in the real 7.0 with the real lighting, backgrounds, and character model. I don't think the benchmark creator has updated lighting or background - you can tell just looking at the grass and the ground. They are identical. I think SE just updated the character models and how they react to the stock environments, without adjusting those environments.

EDIT: That was meant to quote Zhav's before/after images but the phpbb screwed it up somehow.