Gladwell's segment: FO: "Don't you think it rains more? [..]" Omitted: FO: "Captain, Guam condition is no good."
Yeah the omitted section is much stronger. But it's wrong to argue that it's direct enough, because it's still not as strong as the FO saying something like:
"I think the conditions aren't good enough for VFR. I think we should change our strategy."
Some of the pilot interviews after OZ214 have stated many airlines have a "no-fault go-around" policy. If anyone in the cockpit has any discomfort with the approach, the rule is that you go around, and make everyone comfortable, with no fault to anyone. This is an environment in which a pilot could be more confident making a direct statement like the one I suggest above.
I don't necessarily believe this is a cultural thing though, just a good idea that airlines should implement.