Yes, that is what happened. You could MC a sectopod as an easy way to kill it. Interestingly enough, it did not react to its own movement. But you could have the controlled segment shoot another segment, and the other segment would reaction fire back, until it was dead. As the sectopod's weapon was laser and they are weak to laser, this works even on Superhuman. It's almost as if they did it that way on purpose.
Another trick you could do with a cyberdisc or sectopod was MC it, use up its time units, MC another quadrant, repeat. You could use up the unit's TUs four times per turn if you had the ability to keep MCing them.