"if a real threat of mass murder from the Palestinian government were to arise, the IDF would be quick to respond." Or even an unreal, imaginary threat. That is the danger of leaving the settlers in place - that they may deliberately provoke Palestinian violence in order to draw the IDF back to "defend" them.
Sinai bomb attack could have targeted peacekeepers, official says (AP)
from the article: Comment / Settlers can stay, but only as citizens of Palestine