I personally would love some native controller support. I have tried some of the third party stuff but never felt it gave the right control. Native support would be far better.
Oh and for those that are saying they shouldn’t add native support because you can get third party support to use a controller. In that case they should add an in game LFG for dungeons function. We have a third party website we can go to to get that! Its silly to say the answer is third party so don’t need native support for something. Native is better then third party. Good suggestion OP.