Creative Speculation

your hairsplitting about what constitutes a symmetrical collapse into a building's footprint is tiresome. by your rigid definition then no building in history has ever been blown symmetrically into its own footprint.

you can see in the following clips of several known building demolitions that they do not collapse perfectly symmetrical even though they are considered successful demolitions. there is often a noticeable lean as they collapse, and they do not exactly fall into their own footprint. that would be impossible because in any building demolition some debris will always land outside of the original footprint area. but for all intents and purposes they have collapsed into their own footprint, because most of the debris is inside the footprint area.

if anything building 7 came down more symmetrically than than any other known skyscraper implosion I have ever seen.