Why would the military pay to fix christian church's if they are Islamist? I am not so sure the Military are the bad guys here.
That may prove to be an empty promise.
Consider that the military could have prevented these attacks in the first place, as well.
The majority in Egypt are still of the type that chanted “To Jerusalem we go, martyrs in the millions” in Tahrir Square back in 2011; one of the motivation behind the coup has reportedly been that Morsi was moving too slowly against Israel. Tamarod is actively pursuing the end of the 1979 peace treaty, as well.