If you take it to time stamp 1:26/3:12 through 1:27/3:12 you can see the nose of something that certainly does not look like an airplane to me come into the screen on the right.
Not being completely computer literate I do not know how to make a copy of the screen shot, however it looks like the three or four frames there are important.
I see the nose of some fairly small diameter something come into the screen, then there is the initial explosion, and the next frame (1:28) seems to show the absolute absence of any flying debris that would be expected from an airliner.
At time stamp 1:28 I see an explosive image that is roughly the shape of the tail end of an airliner, but it looks more like just the initial explosion being expelled out of a hole to me with the primary explosion being seen in the next frame, time stamp 1:29, where again no debris can be seen being thrown into the air that could indicate an airliner.
I would appreciate someone with the know how freezing those particular screen shots so I could see them side by side or something.
I find it hard to believe anything could vaporize within the time of one video frame to the next so completely, especially considering that in time stamp 1:29 there is at least a majority of that wall still intact.
Someone should be able to reliably size the object coming into the screen by comparing it to known measurements of other objects in the image I hope.
Thanks in advance.
Here is the link to the videos, they're down the page a few paragraphs.