I think it is twofold.
One: They are afraid of copy cats, that’s reasonable.
Two: More so they are afraid of the ‘so called’ manifesto.
I have read it and probably 75% of people would agree with 90% of it.
There can be no dissent with the ‘multicultural paradise’ they are forcing down the throat of western civilization.
This is why they do not want the public to have access, IMHO.
Bingo. The manifesto is partly a defense of European culture and partly as payback for previous Muslim terrorist acts. The video is of a European fighting back.