Electronic shifting is less of a drastic change than clip-less pedals were. Does anyone else remember when they came in, back in the 80s? At that time, criterium races were started from a standing start - the commissaire fired the gun as you stood at the start line and you tried to get your feet in your toe clips and tighten your straps as you rolled forward. Clip-less pedals were seen as unfair, so many commissaires started doing a rolling neutral lap to level the field. Today many still do, even though you never see toe clips in races any more.
The point is, bicycling has always been a sport of ever-improving technology and most of the things we use and take for granted on our present day bikes were "unfair" to someone at some point in the past.