Your first link has zero information to support that wearing a bicycle helmet would do any good, it only suggests it. Personally I doubt a bicycle helmet would do much good because they aren't designed to protect your head in such an energetic collusion. Your second link only says that motor vehicle wrecks are the cause of 20% of TBI related hospitalization. The word helmet doesn't appear in it at all.

So no, based off of your links I wouldn't say the data disagrees with me.