I did not think a question could be considered blundering. Especially a question that could have multifaceted answers!
Or are you referring to Einstein's quote?
Or something else entirely?
I am referring to this crucial quote from your blundering source.
"Since under the heliocentric model the earth is supposed to be spinning in an easterly direction, a viewer who is looking at the North Star would necessarily see all of the other stars travelling in a westerly direction across the sky."
This is blatantly false and reveals the source to have fatally poor understanding. The Earth rotates anticlockwise (that's what rotating East means) so the sky appears to rotate clockwise around the pole.
Surely you can see his blunder now? Westward actually means clockwise around the North Pole, not a linear direction. This is true both on the ground (as you should agree) and in the sky.
Which way is Westward on this map?

I have read that authors book more than once and have done plenty of personal research/investigation into it pertaining to many of the authors claims and found them to be more than valid but true. I seriously doubt he could be wrong about everything. He is human though