I think the most that can be said is that, based on the information available so far, 3 distinct and different failure modes occurred in a short space of time.
Whether or not, further back along the causality chain, there turn out to be contributory factors in common between the events is currently unknown.
Given that there doesn't seem to have been any announcement by either the Egyptian AIB or regulator that they are investigating a potential connection between the three events, we may never know the answer.