I don't really get feeling bad about kicking the robot, must just be that it looks so much like an animal. Speaking from military experience I can say being able to kick it out of the way is extremely useful, it may be between me and the closest cover from enemy fire, or it might be about to step on a mine or IED.
Looks very promising, hopefully future versions can come with built in light armor. That would be a dream come true for many grunts out there, letting a robot carry your extra supplies and also provide cover from small arms and shrapnel.