My theory is that big bright yellow letters cause a sudden synaptic shock in the readers' brain so that they're unable to read and process the information properly. At the same time the bright colors desensitize the reader so that the normal-sized and -colored text seem unimportant to the subconscious. It'll thus blind out the text and make the readers psychically unable to read the text.
So it's not actually their fault.
Tl;dr: Read the first post
Back to da topic:
That's pretty interesting, I didn't think you could set-up the abilities in a way it would not stop the movement after the effect has been applied once. But now when I think of it... even the melee game has such buttons in it >.<
Using a different mover you can also rigg the pathing in a way they would stop trying to run around cliffs but instead try to move through them (which would fail). That would make the unit less jumpy when running against a wall.