On one hand, I'd be very disappointed if this was content that is complete, but was removed from the game for purpose of selling later. On the other, if this was just incomplete work that they put on to finish post-launch, I don't mind it so much. I'm sure they'd prefer to have as much on the disk as possible since adding content always causes trouble.
Now all the game needs is microtransactions and we've got ourselves a perfect 10/10 on our hands!
I'm done with Destiny. Only 5 missions for each DLC? I'm DONE.