The removal of the Kickstarter credits has nothing to do with forgetting anyone.
With the Enhanced Edition, some things had to be changed for balancing reasons (like the henchmen design) or localization issues (summon names), and eventually for various reasons all of the direct Kickstarter content was removed from the game. Ultimately, the EE is a separate game, rather than an update.
For D:OS 2, the intent is not to need to have to do an enhanced edition.
Thank you Raze for your response.
The only thing I would have to say is no one plays DOS when DOS EE is the flagship or upgrade of DOS and it still utilizes the same name minus the "Enhanced Edition" I am just surprised that Larian made this decision.