Yup. Here’s the post in your thread:
And here’s the quote from an interview confirming it, as well:
“So what we’re doing,” John Hight told me, “is enabling a lot of the things required for our add-on community to build add-ons for controller support. And it isn’t just controllers: we’re looking at a number of different devices. But our focus was not to try and make WoW feel like a console game but rather for players with disabilities to have more accessible input devices.”