PoS is the default chain which is fully supported by ethereum foundation and a long list of reputable projects (Bancor is one of which).
the vote should be about PoW fork which might be a reality (not sure if this will actually happen).
as a result of the merge, the network will be duplicated and a state will exist on PoW.
this unwanted duplication, should either be let alone and let the market possibly abuse it OR disabled and freeze.