To me, it seems that the proscription of Palestine Action is being used as a cover for attempting to silence any display of support for Palestine. It fits in rather well with an administration that thinks it appropriate to raid a Friends Meeting House to target those who may be engaging in WrongThink (not in line with Party mandates).
This isn't government of the people, by the people, for the people, this is government of the people, by paid agents, on behalf of corporate interests.