I do agree that extremists should be blocked from the likes of FB, but this needs to be balanced. No use getting rid of one set of extremists just to permit their opposites free rein, could lead to claims of bias!
Just after Jez has finished sitting for the National Anthem and standing for the Red Flag.
Though I may disagree fundamentally with @labrat on many issues, I defend their right to their opinions; just as I expect them to respect my opinion.
But the peculiar evil of silencing the expression of an opinion is, that it is robbing the human race; posterity as well as the existing generation; those who dissent from the opinion, still more than those who hold it. If the opinion is right, they are deprived of the opportunity of exchanging error for truth: if wrong, they lose, what is almost as great a benefit, the clearer perception and livelier impression of truth, produced by its collision with error.
On Liberty, John Stuart Mill, 1869
While they may be working in the right direction you will note it is only one side that is mentioned. It would help reporting if it was mentioned if FB has taken similar action, or were about to, on groups from the other side of the spectrum. If they haven't then it looks like FB have succumbed to outside pressures.