I still enjoyed the episode and that it was Zach. If it was any other character I probably wouldn't have enjoyed it as much. I liked him but sweet and innocent just gets kind of annoying to me after awhile. I want to see it shaken up. And it wasn't a far leap for me to see that he had the potential to be a follower of anyone. Smart doesn't mean not easily manipulated. I saw him as having very little street smarts and such and just waiting for a predatory person to take advantage of him.
I know I'm like alone in enjoying how this all panned out.