This seems like a sensible idea.
Though it doesn't stop a situation like Vuode where a law was passed that seems almost designed to prevent anyone not fully up to date with provincial law from running, resulting in two unopposed elections in a way that seems wildly undemocratic to me.
To be honest, I'm quite disappointed with the way this law has turned out. Several provinces have made quite a mess of their provincial elections at some point in the last few years.
Fwiw, I do think such a request can be made by provincial law though, even when there isn't a functional government. In the case of Cézembre, I believe the constitutions requires the Sénéchal to make such a request. I think it's fair therefore to interpret this request as automatic, so the Chancery will conduct the elections there.