You haven't addressed the fact that the overwhelming OSINT consensus contradicts their claim, making it fringe by definition.

I am very familiar with FA, and with that particular paper. That's the thing with echo chambers: the people inside of it are all repeating the same exact talking points, drawing from the same narrow set of "approved" sources. And in the case of Al-ahli, the set is very, very narrow, so it gets repeated a lot.

Al-ahli is the ultimate test, because the evidence is so one-sided. If you can convince yourself, against overwhelming evidence, that Israel is still responsible - then you can convince yourself of anything.