I fired an editor over this. He said my book would "confuse everybody" unless I rewrote it with expected inaccuracies. He wanted a total rewrite anyway; he wanted me to turn it into a YA Coming of Age thing with a boy who finds a magic sword that makes him a master swordsman in another world. But I needed to take out the confusing stuff, too.
He marked up the whole manuscript with NO, REMOVE, and TAKE THIS OUT all over it in the sidebar, stuff highlighted on damned near every page. Mostly the stuff that I'd spent my life researching. I'm not talking about taking out info-dumps; I'm talking about rewriting it with magic swords slicing through plate steel and horses that apparently never founder or have to eat.
My wife says that when I opened the Track Changes bar I dropped more F-bombs than Tony Montana falling down the stairs.
The research stays.
O_O I'd have fired that sucker too...