Isn't this in contradiction to how all other Special Energy is treated? I've been in many situations where someone would, for example, attach a Dangerous Energy to a Yveltal and then I might come in and use a Slowking to move the energy to their benched Garb and in doing that, the energy would go straight into the discard since it is required to be attached to a Darkness type 'mon. I mean, maybe this is what makes Electrode a super special energy - it must be initially attached to an electric 'mon but after that, it can be moved freely without consequence.