In my experience, the all digital units are part of the problem.
Back in the old days of analogue radar, more attention was paid to finessing the thing and using several settings and subsequent screen paints to interpret the returns. Intensity, tilt, range and sensitivity were all put to good use.
Digital radars are treated more like mysterious boxes in training with little insight offered into their internal workings. This unshared insight has the potential of unlocking the finer points of use, particularly when operating at the limits of the units performance.
Across the board, system concepts and theories used to be covered in depth. Unfortunately with today's highly automated aircraft, the dumbing down philosophy marches on.