Consider, too, that the standard orthographic view buttons are not there because they are of any particular value to the 3D environment but rather as a kind of "compatibility" feature for those who are so inured to the standard elements of conventional 2D drafting they can't stand to let them go, even when they are no longer necessary. But the bottom view is used so seldom by so few as to be a rarity even in a 2D environment, much less in a 3D environment where it's questionable whether any standard 2D views whatsoever are needed.
There's nothing more "technical" about a standard 2D view--just more 2D. Far more information, and more descriptive information, can be presented in a dynamic 3D perspective view, and in a way that is much more natural to the human senses. We are accustomed to looking at things this way from a lifetime of daily practical experience.
Orthographic projection is a conventionalized system invented to deal with the limitations of 2D media. If you remove the 2D media, you may as well also remove the 2D viewing conventions, which are not as good as the natural 3D perspective view we have of the world around us anyway. Do you ever really see anyone standing motionless directly in front of (or below) an object to get a better look at it? No, you typically see them moving around and examining it from all angles.