As for being "controlled opposition". You can be damaging to a cause (so ultimately beneficial to the "enemy") without any paid or organized collusion.
I think this is a more accurate description of the situation. He's elbowed people out of the way, silenced other voices, and then discredited himself - living up to the caricature of how an apostate will behave once they "leave the truth".
If you become a poster child that the WTS can use to say "see, look how people fall apart when they leave - abusing their spouse by using prostitutes ..." then there doesn't need to be an ongoing relationship or any "control" for that person to affectively be opposition to the very thing they claim to be fighting for or supporting.
But I don't think the overly-dramatic video helps or is really convincing. Like Evans, it probably does more harm than good, so personally I would distance myself from it. Things like that chip away at your credibility and reflect on your judgement IMO.