Mollie had doubts. She told him she'd never speak to him again if he was a Traitor; not something you say if you're sure he's not. Even if she was too stressed to reason that Jaz wouldn't vote to banish if he was a Traitor, she could have reasoned "I have doubts. If Harry isn't a Traitor, I'll share the money with him; we would split it anyway if he's Faithful."
I can't deny Harry played well but like a PP, I think he got extremely lucky in many respects and was more an opportunist than a great strategist. Jaz very nearly got him and really should have.
I know it's a game, the rules and all that, but it is starting to make me uncomfortable and uneasy now. I'm also seeing just how unfair the odds are and it's annoying me. I don't think I'll watch the next series.