Not nearly, in my mind. Accidentally changing the loudness or fader or balance or whatever requires that you either remember what it was set at before, forcing you to look at the screen, which is likely what you were trying to avoid when you committed the error in the first place, or recalibrate your system from scratch. Accidentally fast-forwarding or rewinding is easily undoable, and certainly doable without resorting to looking at the screen. Not that I suggested that FF/REW is the proper operation here (not that I disagree, either).

With the possible exception of loudness (and obvious exception of volume), all of the things that can be controlled from the knob presses are things that are, more than likely, going to be set once and forgotten. I mean, how often do you change the balance and fader in your car?