So we agree that Chrome OS changes very little in that regard.
So? Since when does some subjective metric of complexity of use-case exclude an item from being an appliance?
An absolute viewpoint that assumes that Chrome OS will replace *all* computers. This isn't the case by a long shot.
Yet the internet remains a tremendous source for increased productivity especially in the field of learning. I remember similar arguments against C++ taking thunder from Assembler
Ironically it seems that many more computer science concepts can be realistically reached from high-level languages like C++ and the door has been opened for many users due to the decreased cost of entry.