Precisely. Just like they bragged about how great the Elite app and website would be at game rollout. WE need the references in the forums because a player can only pass along the credibility of the game/company. Treyarch's news items do not mesh up with the actualities of the game. Half baked and over promised. Reminds me of a DOT com company. Wait, they almost are!
So, instead of stating unequivocally a player Double XP weekend, one could state the source....exactly one tweet about Double XP, which is not supported by the actual News Item, and an in-game popup.
Again, we won't know until we get some. Better to shape expectations, seeing how nondevs are announcing events without reference.
What we know.......Double Clan XP for the three events. A tweet and in-game popup that may be missing the detail of Clan XP in those messages.