Because Dan asking "Who's X" 5 times per episode isn't funny or interesting? The story is half the reason they're playing this, it's nice if they at least try to follow it. Dan made no effort. There's plenty of comedy in the fights and their reactions to the side stories and whatnot. not paying attention to the story (and Dan didn't, at all) is not a selling point imo
He liked when over the top stuff happened in cut scenes and fights, that's about it.
You have a point there. Their reactions to stuff that happens in the game is a big part of the appeal I agree. I actually dropped out of Beast in the East pretty early on as I want to finish the game myself first, so I haven't actually watched much of it.