The human interface, as the psychologists like to call it, is rapidly changing in the cockpit. Gone is the simplicity of four selectable digits on the navcom. Airline aircraft also move faster than ours, but there is another set of eyes and hands to help. Before you despair, however, remember that these are first-generation IFR units and the technology will certainly improve. The marketplace has a way of making that happen, and usually pretty quickly.
Some people resist technology because it means change.
It requires learning, thinking, and practice. Instrument training devotes at least 15 hours of concerted practice on making peace with the electronics and learning to interpret the arcane displays of 40 or more years ago. We have to learn how to use it. Another comforting thought is that you don't have to go solo early in the process. The old reliables, VOR and NDB, are there to turn to during the learning curve.