If there was a separate role for somebody to take care of blockchain parameters, problems like this would make clear for everybody that the person/organization in that role isn't doing the job. It would be easy to demand stakeholders to vote for somebody else who is more capable of doing it.

Good point, but then there is a risk of apathy from another angle. With too many different things to vote on, voters can easily find that they don't have the time or interest to understand them and get involved with voting.

I'm not sure exactly what SP situation you are talking about but there are several different considerations related to the SP of new accounts and it isn't a simple problem. That's actually a good example of something where many users would not want to get into the weeds and really understand it.

None of these questions have simple answers though, everything is a tradeoff.