I think that you can do a lot against the 'optimized races' by giving riders the timing info reliably _without_ giving them radio communications with their teams. I also think that currently, the races are actually quite fun. Even in the sky times in the TDF, there were breakaways with a chance, there were people who would solo to a victory.

I don't think unofficial channels are ever going to be policeable. Obfuscation is too potent. And I don't think it would be interesting if teams start competing to be better at getting their riders extra info. Even though I think its quite fun to try to design such systems.