I don't see why it's so difficult to control the scope and spread of TC, rider aides, etc. Simply provide a standard spec, sealed, highly configurable ECU that does not contain any rider aide functions within it. How difficult can that be? It's done in car motorsports, and works well.
It can still be configured for custom firing sequence/engine/crank configurations and all the other variables needed to run the engine. A predetermined and built-in set of maps and parameters would be allowed to be tweaked, but that's it. The rest is for the rider to control.
And yeah....there will likely be an increase in the number of high-sides and other safety issues for riders to work through....just as they've done for decades. The bottom line is that even the riders themselves are suggesting this needs to be done.
It increases the value of the rider in the overall performance of the package, which is only good for riders (at least, the GOOD riders). It widens the gap between the riders - as their skill, courage and experience plays a greater role in their performance, and allows truly exceptional riders to pass and overtake others. The amount of passing will increase, as there will be a greater disparity between the riders.
Whether that means that the field will be more spread out and thus more processional in the race in the last half of the race, is obviously a concern, but I have the feeling that the days of a truly dominant racer are past us, with the natural competitiveness of the top 5 or so racers on the grid these days.
We're unlikely to see such major dominance as we saw with Agostini and Rossi again, ever.....because riders there days are so well trained, so professional, so dedicated to their craft, that it makes such clear dominance by one individual much less likely to occur.
(but of course we can never say "never!")
The techno geek in me wants to say...let the manufacturers build the very best they can, and showcase their abilities....but realistically, we need to consider whether the sheer capability of the bike and speed of the bike around the track is what racing is all about for us as spectators, or whether is the human aspect (rider skills) that we truly admire and want to see. I know which it is for me.