True, but not in a way that matters precisely for the purpose of this discussion.
The issue as described in this article is the control of the single channel by one entity. The browser is an "everything app" in the same sense a television is an "everything communication appliance," but the signal you can put on it is sourced from thousands of different, independent operators (assuming, for TV, you have plugged in more than just a cable line).
In general, when companies that create browsers have attempted to reduce the browser to a single-channel tool (by, for instance, constraining the sites it will access), the browser has fallen in general-use popularity.