Adding controller support should be after the LAST point in the TODO list for Larian if even to be in that list at all.
"Oh, can't i just lie on the coach lazily and play a game while someone puts food in my mouth."
Sorry for the sarcasm that some people could find a bit offensive to them but really i wanted to express my negative attitude towards requests of that sort towards the developer.
Don't we have enough of this mentality already breaking enough games?
No, please, Larian, don't even waste a line of code for that. Use the resource for something much much more important and in tone with the game goal and culture.