You're missing the point. Ford's book wasn't "ignored." Its existence most likely wasn't even known by the DSC producers. You can't ignore something you aren't aware of.
Definitely not true. In fact, the exact opposite has been mentioned in a wide variety of sources. For instance, quoting DSC's Art Director from a 2017
panel appearance:
"We also sought not just the have fine looking architecture but also details that spoke to the history and the culture of the Klingon race and as a touchstone we look to the Star Trek novel The Final Reflection by John M. Ford which was a work that was used as a launching off point thematically for the Klingons by Bryan Fuller."
Besides, I think it's pretty clear that when C57D referred to Trek taking a different direction with the Klingons, he wasn't just referring to DSC, he meant all the way back to TNG. At which point (1987),
The Final Reflection was a
three-year-old book... and one of the most highly regarded Trek novels at the time, as famous for its treatment of the Klingons as Diane Duane's
My Enemy, My Ally was for its treatment of the Romulans. There's no way the TNG writers and producers could have been unaware of these books; they deliberately
chose to go a different direction with both of those races. And IMHO, that's a damn shame. The book versions are simply
better.
I wouldn't go that far. I'm pretty sure that the prevailing attitude of Trek fandom at the time was that the bumpy-forehead Klingons was how they always looked, and what we saw in TOS should just be quietly tolerated and ignored. Which was also the attitude when DS9 made that tribble episode. So really, what f^cked things up was ENT.
I keep seeing people around these forums post this, and it baffles me, because this was literally not the attitude of even one single Trek fan I knew at the time. People
talked about this stuff. Fan publications were
full of theories about the different styles of Klingons, as were official licensed works like Ford's novel, the FASA RPG, DC's comics and graphic novels, and others. For my part, I was decidedly gratified when ENT finally settled 26 years of unresolved speculation.