Control Demolition was not the cause for the Collapse.

When controlled explosives are used in controlled demolition, nothing ejects outward because the detonation sequence does not allow the floors time to compress.

Tower 7 was controlled demolished to destroy evidence about the terrorist attack to the north and south towers conducted the same day and reason being the site was not treated as a crime scene rather the evidence was cleaned up very quickly by military personnel.

This is controlled demolition with the normal downward dynamic starting with world trade center tower 7.  Notice that there is no outward ejection.

This is not a collapse by controlled demolition where the compression of the floors has to be decompressed by the outward ejection of all its content.  Keep in mind that an impact compression 50 thousand tons can only be stopped by 50 thousand tons of resistance according to the third law of reaction where both blocks the upper and the lower blocks destroy each other equally.

For many reasons, controlled demolition has to be eliminated from the equation of probabilities, and the very first one is actually the easiest to understand, the tower had to be completely evacuated as preparation for the area of demolition, including every single office space had to be cleared up from office furniture and all that came with it, so the concrete could be shattered with special heavy machinery that act as an impact hammer to expose the steel areas of the structure to place the special rdx used to slice the steel like a blade in a special angle forming a like a triangle sort of speak, to have a successful controlled collapse and with the minimal amount of collateral damage to buildings around it; in other words, the tower had to become a demolition site where only construction workers and engineers are allowed to enter.

The second reason, the elevator shaft area of the elevator section, had to first be cut in different sections per floor, in order for the collapse to be safe and without causing colateral damage to structures around it and that is precisely the first question they ask, why did the tower collapse toward the center as in controlled demolitions but still created collateral damage to surrounding buildings.

The preparation of a building requires also removing and boring some parts of the structure like walls a to avoid air compression forces to be built from within, and also covering the bottom part with a net to catch all the ejected pieces to minimize collateral damage to nearby buildings.

The third one, more than just one demolition companies per tower had to be working with the preparation in order to complete the project in 12 months, considering the number of floors per tower; this was not a one-night job like many assume.

Even if assuming that controlled demolition was employed, and the tower resulted in a free fall collapse, this is not what we saw that day with the north and south towers, tons of metal debree being ejected outward while the top sections were collapsing creating compression below, which is in part consistent with the tremendous amount of air pressure caused by a compression of floors that cannot escape and rather looks like the floors are exploding while the collapse is in progress which immediately eliminates the possibility of a free fall collapse produced by a controlled detonation which is in part what we saw with world trade center tower 7, a collapse without compression.

In the case of the tower with a tube design, compression was created from within, as the tower successfully pancaked, but since the compression was not high, it did not create further inner forces to sort of decelerate the downward momentum developed by gravity and upper floors compression, but it did create collateral damage to buildings around the collapsing tower by the ejection of steel structures according to the Bernoulli's Principle, and this is why we saw steel beams ejecting outward from the center of the elevator shaft area with the exception of tower 7 being demolished the same day of the terrorist attack.

If the floors would have pancaked, in the hot city of Miami, the collapse would have taken several minutes, considering the conservation of linear momentum along with the strong factor that suggest that the bottom floors were healthy and not compromised by the element of heat nor the element of New York cold temperature but and since we have to consider the laws of physics in this case, then the destruction would have taken place on the two upper sections of the tower; and not the bottom.