The whole principle behind a motion to defer is to be able to not deal with the motion--that's the whole principle behind it--until a given time. And it's my understanding that committees certainly have that ability to do that if they think the motion that's moved would be better dealt with when there is more information and so on.
So it seems somewhat counter-productive to then have to.... There is no such thing as a motion to defer if you have to deal with the motion that you're trying to defer first. That's the whole point of the motion to defer. My understanding is that it's in order.