One reason this is true is because it has been done before. No one wants to see things revert to the way they once were only to be again where they were at that time - long ago. This is called negative gain. The people remember - I know I do. Things may have started to slip a bit when the push start was abolished - to favor the Yamaha which wouldn't start.
Rules change in the face of the people who put up the money.
It's always easier and cheaper to change the rules than it is to develop or redesign characteristics which are undesirable. Racing will continue to exist. It is not the racers who are lacking talent, it is the factories who are lacking interest in providing technology to the riders. And perhaps the factories are also lacking interest in creating new systems to make the big bikes better. After all why improve a machine that already dominates the field if given enough attention to.