Eh, the King could always have moved his proclamations back, and pushed the funeral forward. Let's not pretend he's powerless. He's quite the opposite.
The late Queen had four children, eight grand-children, and sixteen great-grandchildren. Plus, the proclamations are only a small part of what's happened over the last ten days.
Only those in the party that form the government vote for PM (depending on the rules of the party). The stats you've chosen have as much relevance as pointing out how many non-Americans vote for the US president.