I think we understand and are supportive of what you really want.
But this thread , is not about improving the situation and as such its only got 1 vote , its just not going to happen .
The latest request for example for a change to Innsbruck has already got 50 votes (Still may never happen as who knows how much attention is actually paid at ZHQ to votes cast) . and if you read the thread you will see far from it being low quality world more people consider it of the highest quality.
Positive feature requests on how to improve the more virtualized worlds to get the requirements and features wanted much more support and votes.
Similarly improving all worlds including the UCI ones would meet the stated requirements too so having routes possible in all worlds that met what you wanted seems as previously mentioned the inclusive way to get improvement for all . The idea that one world is for one set of users and one world for another , is not very appealing I suspect to the vast majority of people. Although I know it is a advocated philosophy not limited to the virtual world of Zwift these days.