Yet, you still haven't shown why it's wrong! Saying it 'could' be wrong and 'can be questioned', does not make it so. But... seems you are not going to make a point or take a stand. Much easier that way. You never have to prove or disprove anything at all!
I will think the world is stationary until motion is detectable and measurable. You haven't done this. No curvature has ever been measured or detected outside of a theory. You haven't done this either, and it would be foolish of you to debate either of those points with calculations based on a theoretical model. No one has ever seen a black hole, yet everyone knows what they look like. They don't exist outside of a theory.