Earlier quoted context omitted.
I have zero knowledge as far as sentence's go. So with that said, how is being required to only server 1/3 of a sentence brutal? What am i missing?
Well, for one, he's transsexual, which may or may not indicate he's less of a threat to society. If he's not a threat to society, and won't do what he did again, then it seems like the motive is to make an example of him.
Regardless, Manning was never a threat to society because his "crimes" never hurt anybody. He revealed corruption and I don't think his gender or sexuality played any role in that.