The convention is the place for specific changes.
Changes to what?
The only thing close to consensus as an amendment is balanced budget and that's only because everyone still has their own idea about how it will work.
It's an almost exact parallel to repealing the ACA. Everyone is for it until a specific scenario takes shape - with all it's warts. Then it all goes pear-shaped
The ACA repeal has been a genuine debacle but will seem like legislative genius compared to what would happen at a COS.
The COS is a tool to implement a solution, not a solution in itself. The first step is to agree on the solution.