Well, there is always a tension between interfaces for newcomers, who don't use the interface that much yet, and power users, who do. First group is only learning to use the thing and doesn't really care how productive they are, but cares how discoverable things are, how easy it is to solve problems not knowing anything about the interface and all that. They cannot really be vocal, because they are not using it and invested nothing into it and are unsure themselves about it. Second group cares about productivity and speed and to not relearn things, they already invested a lot of time in the old ways to become productive. You are supposed to never hurt them and always provide options to keep the old ways, as they are your evangelists and the primary audience who's problems the product tried to solve in the first place. I think some people at Apple do understand that pretty well and the purpose of the touch bar is to simply boost sales a bit by making it more attractive to newcomers. Don't know whether they succeeded at that though.