It's great that you are so interested in this theory. I would suggest reading into "bendy light" theory, as it explains most of (all) the discrepancies with light, size/shape of stars, etc.
No, it doesn't. You flattists rely on just trotting out the name of your theories and hoping we'll believe it does explain something. Bendy light explains absolutely nothing and its predictions don't match reality. The laws of perspective alone are enough to put bendy light in the bin.
And no, the disc is not spinning. The aether pulls into itself after spilling from the bottom of the Earth disc (this is called Aetheric Spillage), which creates multiple whirlpools above the Earth. By definition, whirlpools are spinning phenomenon. This is what causes the movement of the stars.
Movements of the stars are incompatible with the above explanation because it is impossible for any two points in two different whirlpools to maintain a constant angular distance from each other if seen from a planar surface. You also cannot tessellate circles without gaps, and there are no gaps in the night sky.
I'm sorry but just claiming that some pig-stupid excuse explains something is not the same as it actually doing so. Making up pompous terms ("aetheric spillage - lol!) doesn't add authority to your trolling.
So if you want to continue to tout your theory, you'll now need to explain (a) the constant angular distance of stars (b) why are there no gaps between the whirlpools.
Your theory doesn't fit observation. The round/torus theory does.
I expect you'll just reply with some "I don't see why I should explain it again/ Not my fault if you don't understand it/ This has already been explained" type dodging, rather than address either of (a) or (b).