There can never be an accurate FE map because the map that already works cannot be flattened without distortions.
I believe your sentence would be accurate if it was thus written:
There can never be accurate FE map because the map that already works cannot be flattened because it is already flat, as are all maps.
I'm a bit confused by this change. The map that
already works is a spherical map. We have flattened projections of it with known and stated distortions.
If there is a flat map of the earth that is without distortions, don't keep it to yourself, please share with the world so we can finally see it. Lacking that, I'm not impressed with your lame attempt to put words into my mouth.