I don’t buy the “muscle-memory” argument without evidence to back it up. However, recognising what mode a multi-functional module is in can be an issue, especially if you have, say, six of them, each with identical knob and jack placement. But colour versions of the OLED displays are now available (albeit more expensive), and thus, say, the colour of the text labelling could be used to indicate what mode a multifunction module is in, at a glance and even in peripheral vision.
Just look at avionics. Aircraft cockpits used to be festooned with one-knob-per-function or one-button-per-function controls, each individually labelled in increasingly small fonts as the density of controls increased. Now, modern avionics uses either touch screens, which have self-labelled soft buttons, or hardware buttons positioned around the edges of screen which soft-label their functions.
The same for oscilloscopes. They used to have one per switch or knob. These days, they still have a few knobs, but even more buttons, positioned around the edge of the display, plus one or more encoders, allowing them to provide a large range of functions, which, if laid out in the old one-control-per-function style, would require one square metre of control panel space and a price equivalent to a mid-range motor vehicle. Instead, oscilloscopes are now smaller, lighter and cheaper than they ever were.