Well, doing a google on the quotes leads to this article.
https://www.helisimmer.com/articles/real-pilot-impressions-ah-64d-apache-dcs
That is a year old, so completely irrelevant today.
Plus, reading on beyond "When I first tried this model, I found it almost impossible to fly."
He continues, "So, I started working with some curves. I set all of my primary control axes to 25% at first. This brought the handling at a hover closer to what I would expect,"
So what about the FM today? He never seems to have revisited the DCS AH-64D, and mostly focus on X-Plane and MSFS.
For real ongoing review of a real Apache driver, look at Casmo's channel for exhample https://www.youtube.com/@CasmoTV