Let me put a stop to this. What the video doesn’t show you is the gaping hole in the opposite bottom corner of the building. Unlike the WTC towers, it did not completely fall inward so the stress of one side giving way caused the other to sag inward. Those “explosions” were violent snapping of the steel superstructure at it’s greatest stress points, the building edges. Remember the building didn’t collapse until later that afternoon, with the whole world watching. Any decent implosion job would focus the explosives toward the center of the building, not at the top corners.
Finally, we knew the building was going to come down anyway. After the towers fell it was too damaged to be considered safe. If it didn’t fall on its own it would have had to be taken down anyway.