For Tim this is part of his “act”. By playing dumb and uninformed (or choosing to stay relatively uninformed) he doesn’t risk sounding like a know-it-all and/or spreading false information. That is why many people who otherwise hate Vloggers find Tim likable.
Indeed, Tim purposely stays away from attempting to learn about rumors or insider info, and in turn, doesn't present any.
Tho, that doesn't stop him from getting officially announced information wrong at times.
The best part of Tim's vlog... it's edited. Cuts out the lengthy walk and blather with nothing really happening. Also, (almost) no live feeds where he's talking to viewers.
Still, I'll put him and other vloggers on fast forward, and just jump ahead. I'm mostly looking at what's in the parks rather than Tim's commentary, and Tim shows what's happening pretty well.