I don't understand why this situation is bothering some people......
Ever since the mid 1950s, idle fluctuations have been happening in automobiles when the A/C compressor engages/disengages.
So, it seems more noticeable in our cars, since they have relatively small displacement, low torque and light flywheel.
I reckon, back in the day, we were preoccupied with where to find more ice .....
humfrz