As I said, those websites and anyone presenting that map is an offshoot organization. The original research from its progeny cumulated with a Bi-Polar model.
We present that model for informational and educational purposes. Information on the Bi-Polar model is also found on the Wiki. The FAQ represents the Monopole model as one proposed model.
Common model != Current model.
Except that very few seem to accept a bipolar model other than you and Sandokhan.
But if you claim that your flat earth is anything like that please explain how Kingsford Smith flew from Hawaii to Fiji.
Here is a link to a photocopy of the chart used by Harry Lyon, the navigator on that trans-Pacific flight.
No. 2021, 1902 (Item 4), Fiji islands Chart showing Fiji. Chart includes flight calculations, and shows portion of route of the Faith in Australia 1928 Pacific crossing.Note that the 180°E - 180°W "edge" on that map intersects that route in the eastern islands of Fiji. So try fitting that on your Bi-polar map.
Now you might claim that edge might be "somewhere else". OK just show where it is and there are certain to be crossings of that too.
And remember that they had no GPS and had to use dead reckoning and stellar navigation with an RDF when close to the destination.
Euclidean space is still taught in school despite RE space being non-euclidean.
Who said anything about "RE space being non-euclidean"? Sure Einstein's GR describes gravitation being caused by
curvature of spacetime!.
But even under GR the departure of space from being Euclidean is too slight measure anywhere near here.
It is taught in school for educational and legacy purposes, and is a model that is much more common than the non-euclidean model that RE says that space exists as.
No! Teaching Euclidean geometry is very relevant as very few need be concerned with non-Euclidean spaces.
Yet if we follow the progress of that science we find that science moved away from Euclid's axioms.
No, science has not "moved away from Euclid's axioms". They are still just as valid in Euclidean space and few need anything else!
The few that need to work with various non-Euclidean spaces learn those in higher mathematical courses.
But your bipolar model is more of a backward step because it places the edge of your flat earth where there are numerous flight and shipping routes.
How do you explain those?
And how do you explain the numerous equatorial circumnavigations?