Such a terrible take. Wikileaks did leak Russian intelligence files. The argument that he hasn't leaked the same amount hinges on the assumption that he somehow has access to everything, which is of course nonsense.
Snowden, I think, somewhat blinded by the overwhelming US propaganda machine and the fact that he's stuck in Russia, made an honest mistake. He admitted as much on his Twitter. Nobody's perfect, that doesn't mean they're working for Putin.