I think this is great. I don’t want these buttons and am happy with the way Tesla has added functionality to the left scrollwheel, but I know people that think they need buttons, and if this can help them get a Tesla and be happier with the UI, then it’s all the better.
I'm all for modding a car to your taste - and if manufactures wish to take steps to make that easier than that's even more exciting. But a lot of people (including myself) enjoy the minimalistic interior. So... let's keep it a choice, ok?