Have an update, good news and bad news.
Good news is after conquering Morocco, Sunni Zealots were listed as a possible rebellion. I pushed for harsh treatment on all of those that weren't the zealots in order give them a chance of rebelling. They did and proceeded to take control over Morocco converting provinces along the way. Great I thought, as soon as they've finished, they'll teleport across to mainland Iberia and start to take over until I can accept their demands or they are forced upon me.
Here comes the bad news.
Upon taking all the land in Morocco, they proceed to sit in the province they had last taken. Just sit there, and do absolutely nothing. I'm left with them at 50% to enforce demands but they don't have enough provinces to claim that half with about 18 of 71. I was lead to believe they would teleport around and continue to siege until they were complete unless I was mistaken.
Here is a screenshot for those interested:
http://i.imgur.com/etguN3X.jpg
EDIT: I've been going back and assault some provinces and decreasing the autonomy in order to spark a second uprising of Sunni Zealots, they are currently at 65% with 6.8 years to go before pushing for that and I hope they will start to push across the peninsula.