Well, you can breeze through fast now, but you would've been much slower on your first play of course, which is what I'd assume they're referring to (is that right do you suppose?). In which case, that stat would be of relatively little interest to me. Plus, they're only talking about Normal anyway, whereas I think a lot of us would be using a higher level, pretty soon if not immediately. As someone interested in long-term play rather than once-through then move on to the next game, I'd be far more interested in knowing the average campaign time for a player who's familiar with the level and fluently using Heroic, say.

Having said that, I actually have no idea what my campaign times would be like in the existing games. Even H1! So I'd be hard pressed to make a comparison, heh. Maybe I'll check it out for H1 sometime, just out of curiosity.