Again, my impression from DT7 is not that the events didn't happen, just that they didn't occur in the reality of DT as they did in the book. I.E. the Crimson King still tried to kill Patrick Danville, Ralph Roberts dies, etc but various details were muddled when King "transcribed" them. I'm pretty sure that King would say the same thing.

But my initial point was that Random321321 asked if King intended it to be that way, and my answer was, no I don't think he did. I don't think when King wrote Insomnia he knew that A.) the Crimson King wouldn't be stuck on the top of the Tower and B.) that Patrick wouldn't die after saving two people.