Now that the 8% of block subsidy reserved for ZCG grants is worth a lot more than it was six months ago, there is scope for more experimentation again.
Yes, fixing the UX on coinholder voting, as currently used on the retrospective grants program,
is a no brainer.
But moving to pure coinholder voting for governance, without anything else? I don’t think so.
Instead, how about, as @frankbraun suggests, a futarchy-based system?
I expect a grant proposal to implement a futarchy-based market mechanism to help ZCG in its spending decisions, would be treated favourably.