I do not see any good reason for the unusually illogical account for gravity in the FE model.
Why make a model where the Earth accelerates at a constant rate?
It would be much simpler to just take for granted that the earth has gravity which does not effect anything above some particular altitude distance.
A constantly accelerating at 1g Earth would mean that we would probably be traveling faster than light.
Yet at the same time I see that one "proof" that the Round Earth model is incorrect is because we do not feel the motion.
Also an accelerating Earth would mean that it is in space which in the FE model either does not exist or is not very large.
For example I have seen some criticism that 93 million miles to the sun is way to big a number but if Earth where accelerating that fast we would cover that distance in a few days, hours or maybe minutes.
It seems to me that the current FE model creates far more complications rather than simplifying.