And really, it makes little sense for Cyrus to tell them about the truth of his desires. That would require trust, and Cyrus likely looks down upon trust as weakness. I think it's obvious that in all iterations (games, anime, mangas), Cyrus was the only one aware of what would really happen. Everyone else thought that the world would be changed, or knew that the world would be destroyed to pave way for a new one, but only Cyrus knew just how that new world would be: a world with no emotion, willpower, or knowledge.
Better yet, Rotom could have been used to power whatever device Charon used to mind-control his minions! Damn it, Ihara really should have had the Platinum arc be 5 volumes (like the DP arc) so that he could expand on the plot alot more.Oh golly yes that would have been fantastic. Not only discarded but used as a test subject!
You know what would have been interesting, building off the "nobody likes Charon yet somehow he has tons of minions" angle--if they'd been under mind control as well. It would have been fascinating.