Ya I have heard those. That's probably how I ended up hearing the "why would anybody ever wear a polka dot dress to a political event?!" part of the idea. (Don't think it was on true anon itself.)

I do think the idea that a few people dancing indicates that they personally orchestrated the whole thing to be spurious and ridiculous. Whereas it is very plausibly a spontaneous expression of fascistic joy at the suffering of others.

If people acting on behalf of the state of Israel were involved in planning 9/11, why were they in NY at the time, just hanging out in a van? All the coordination was complete by then. You'd have your people in the institutions ready to go to move things along as required but what exactly was the hypothesized role of these guys? If they were sent to film (for ?? reasons) it you'd think getting out unnoticed would be a primary part of the mission and needlessly making a spectacle of themselves would be contrary to that.

Israel and the US have a long history of espionage and this concept makes it sound like some total amateur hour. I don't think the complex project management required could have been carried out by such dufuses. No reason to connect these people with 9/11 other than some intrinsic israeliness.

It neither supports nor refutes any other hypothesis of israeli involvement. But just like characterizing a polka dot dress as obvious evidence of hypnotic mind control, casts doubt on the logical thinking of anyone who advances it, and makes me less likely to believe anything else they say.