Creative Speculation

Even if I take the video at face value, there are PLENTY of things that collapsed, shorted, burned, pressurized with heat, etc, on that day to explain a bang like that without some nefarious plot to blow up buildings in play.

And one bang isn't bringing down any buildings unless you placed it on one of the critical columns in WTC7, but of course multiple problems with that:

1. The building would probably come down immediately.
2. The collapse would precisely resemble what it would from a progressive collapse induced by fire, in the manner NIST specified, and the whole 'something weird about WTC7' claim is predicated upon horseshit about 'unexpected free fall' and other things about the collapse that would still happen in either a single-column demolition on the critical column, or a progressive collapse induced by fire.

So either way, their claim falls on it's face. Big bangs here or there or no.

Edit: I mean, think of large vehicle high pressure tires. Like on a semi. Ever hear one of those pop? In the blocks around the WTC complex, there were plenty of scorched to the frame vehicles in the streets, stopped where they were when people got out of them. To say nothing of gas tanks, etc.