, no account of what happened, whether by the Inhumans or the mutants in attendance, should logically arrive at "Cyclops was planning Inhuman genocide," much less that he actually attempted it. If the Inhumans are just outright lying about what happened, then that would not speak well of the Inhumans at all, so I can't imagine that's what we're supposed to think. Then again, with the way Captain Marvel has been ruined lately, who knows.
Even if so, I can't imagine Magneto letting that stand.
More to the point, though, and far more importantly, it's irrelevant what Storm, Young Scott and Illyana heard or saw of what took place within that red cloud because they know everything that happened up to that point. Absolutely no interpretation of those events (that doesn't involve schizophrenia) will arrive at Storm going from praising Cyclops in his eulogy to demonizing him; Young Cyke describing him as a "a mass-murdering psychopath"; and Illyana trying to murder a teammate from that mission (a mission that didn't kill even one Inhuman) in retribution for him participating in it just as much as she did.
And for that matter, this mini-series was not billed as "See the events that everyone will twist and distort and just be absolutely fucking insane about over until they arrive at 'Cyclops is Hitler'!"
If that's all that was to be shown here, you could have done that with literally any mission he ever conducted in his life since it would be as close to the truth as describing this mission that way. They might as well have just made some shit up altogether, since that's pretty much what seems to have happened anyway.
The mini-series was advertised as showing us what Cyclops did to make people hate mutants again. We were
told shit like this:
Lemire’s book, “Extraordinary X-Men,” featured Storm rejecting Cyclop’s actions — actions we’ll see in “Death of X.” “We’re going back eight months before my first issue,” said Lemire. “It was a different landscape. We’ll see what caused the teams we have now to form. You’ll see Cyclops actions, which are more shocking and surprising than I think most readers could guess.”
That was not shown at all.
I think the events of this story changed as much as FFXV did in its development, and Marvel wrote themselves into a corner. So now, the story just amounts to people doing stupid shit for no reason.
As you said, it seems that, for whatever reason, the writers and editors really thought readers were going to come away thinking that "Scott" was a bad guy in this. I think they way overestimated the sympathy we see extended to cultural sensibilities in this day and age. No one in their right mind was going to prioritize that to the same extent as human lives.
Like you said, the miscalculated reaction to this story is interesting -- more interesting than the story itself. And really quite sad.