This is my second 85. I went and unlocked the Hyjal daily quests and did the first day's quests. However, I remember "The Sanctuary Must Not Fall" giving 10 marks, rather than the normal 5.
I didn't bother checking my marks, "knowing" I didn't have enough, but decided to see what the refusal text was on "Calling for Reinforcements," but it allowed me to complete it and gave me the next quest in line.

I checked my main toon, my 85 which is past that, and he's now 3 World Marks short what he was this morning. Which generally leaves me confused. Everything may be working as intended, but wanted to let someone know. :)