To this day it's still there. This morning I played a game of Hunt and was so frustrated when it popped up. When the Gorgon freezes, you can't do anything but melee in front of you. I quit the game, took the one minute penalty and tried for another game.
I got into a game of Hunt alright... the same game. Apparently, when the AI took over, it started whipping all kinds of ass. I just came in and finished the job.
And I will submit the issue to 2K; which will result in nothing. I noticed that the bug happens if the Hunters destroy the mimic before it manually explodes or is allowed to run out of time.