I don't know if you pay attention, but they say that all the time. Almost every sentence about speculation is sprinkled with, "We could be completely wrong." or "I'm not sure." to the point where it gets kind of annoying. But I guess they have to do it or else people will jump on them for the slightest of things.
oh come on, they've pulled things out of the air plenty of times. We all do it, they have the misfortune to have thousands of people that might just know more than them listening to them.
The Beastcast has a segment for corrections, they claimed the other week that not only did Watchdogs not come out on the WiiU, no big 3rd party games had* (then corrected it the next week) [*apologies if I'm misremembering this slightly]
I always think the claim the GB team are all about entertainment is a bit disingenuous too. I'm sure they don't feel like they're opinions are supposed to be taken as lightly as that
Eitherway, this is more arguing than the topic really deserves