Floating Eyebots would not make very good mules, unless perhaps they were stripped down of their weapons & armor. Could make good robotic companions if you just want a gunpod following you around. Personally I would love to have an Eyebot or two floating around with me, zapping my enemies with lasers.
Depending on how crafting works, changing out there weapon loads could even be an option... or perhaps sacrificing some armor to put in a bigger gun. Lots of possibilities, it will be interesting to see what role robots will play in FOOL.