If that were to happen, I think that the world's shape would be the least of my concerns
And with that example, I do not think I would accept the world being flat, I think me, along with many others would sail for the ice wall (which under my reasoning would be unprotected, due to no need for a conspiracy). That being said, if i actually found the earth to be flat, I do not know what i would think, but I'd say since the vast majority of information is on the RE side, I tend to gravitate tward that