Man. Some people are just jerks. Sorry Psycho.
The man lives in the native habitat of burms. There are no invasive pests in his house that are not already in the habitat. I don't know how many times I had caught garter snakes when I was a child, kept them for awhile, and then released them into my backyard. I will encourage my kids to do the same.
Even now, if I find a wild/native animal that has been injured. I will try to help it, and release it after it has healed. I can tell you, I haven't killed all the wildlife around my country home yet.
I don't understand what you think will happen? I'm fairly certain since we can't change our snakes natural hunting instinct, I really doubt they would have any trouble surviving in the wild.