Personally my stance isn't so much that I think its "acceptable" as I think its "an unfortunate reality". Revolutions are not clean, ever. Individuals involved in it do bad things. Holding the oppressed to the standards of having a completly clean revolution (impossible) is just counterproductive. I support the revolutionaries even if not every action they take is morally right. I dont withdraw my support for something that is good on the whole because of individual acts that are not good.

Its also worth noting that Israel chose to put civilians on the front lines of a settler project, and that this is kind of the obvious consequence of that. It can easily be argued, I think correctly, that they wanted this so they could look like the victims. Despite them being the oppressors.