Moroni called "the hill in New York" Cumorah

Our M2C friends and scholars claim that early Church members created a false tradition that the hill where Joseph found the plates was the Cumorah of Mormon 6:6, and that Joseph passively adopted this false tradition, thereby misleading Church members for decades until RLDS scholars figured out that the "real" Cumorah was in southern Mexico. 

Then our M2C friends and scholars adopted the RLDS theory and enforced it with their M2C symbol.

They say Parley P. Pratt was wrong when he recorded this in his Autobiography.

"This book, which contained these things, was hid in the earth by Moroni, in a hill called by him Cumorah, which hill is now in the State of New York, near the village of Palmyra, in Ontario County."

https://archive.org/details/historicalrecord58jens/page/388/mode/2up?q=Moroni