Nope. When a character is doing an action like that, but immobile, they are considered "moving" because they are doing an action. "Moving" is when your character does ANYTHING. Level 1 spikes? Come on.
For more "fun", drop spikes on an Anubis who is using his Laser Death Stare or even more fun, drop it on Hades when he's in his ultimate and watch him instantly die.
Yeah, don't worry, Tsuki is fair.
Hi-rez is known for "balance"