As far as Jamyl is concerned, all it takes is common sense to deduce that she was a clone. She died. In full view of witnesses - her capsule self-destructed. And then she came back. You basically have to be willfully deluding yourself (or believing "alternative facts," lol) to believe she was not a clone.
Claiming otherwise only serves to suit the purpose of toeing the party line within the Empire. She's still as dead as a can of spam at this point, regardless.
Well, yeah it is Empire.
It is wilful ignorance for the most part or farseeing pragmatism, I would imagine citizens aren't thrilled to talk about that their hero Empress who saved them from minmatar invasion was a soulless heretic. Pomik probably helped the more talkative types to understand that it is safer and more productive to accept that it was a Will of God or something in that manner. If amarr can't accept that it was a Will of God, divine providence or whatever, then their faith is not absolute that in turn makes them a lousy faithful. So no gates of paradise for them.
And that's completely eluding the fact that Empire is an authoritarian state, where if you make to big of a waves you will find yourself on a bus with a one way ticket to Diemnon and your family will get tickets for the next such educational trip. xD
Also, common sense and deduction are good, but not a lot of people can claim that they were "holding the candle" when and where cloning happened. That make it an assumption, a sensible and reasonable one, but still just an assumption.