If you have information to the contrary, it's news to me.
No information, just experience.
The descriptions you said are different, but have the same effect.
Descriptions for Plasma warheads, or the engine disable on EMP, are also different while they do the same thing.
What OP said could be caused by several things, starting by buggy clusters, through lag and buggy drones, to just a game coincidence (you evaded one lock, but got fired at by a drone/mine at the same moment).