Are you sure they weren´t present? Previously there were only two or three images of the event made publicly on which only Shaikh Majid is seen. But this does not automatically mean that his family (or a part thereof) was not present.
Rather, I wonder if the early appearance of images through social media was made public really intended consciously by the families.
The other point I wonder: While the pictures show a Melcha in the presence of Shaikh Majid, however, it is not entirely clear by whom (the daughter of Ali Beljafla and ?????). It seems to be more likely Shaikh Majid is the groom but it may also be that he only had the honor of being best man (witness to a marriage). Should his family (or at least his father) not have been present for sure, then the last point could provide an explanation.