As an American, I kind of envy the fact that there's a referee who can step in when needed. She stepped into Australia's government shut down and fired the whole government in the 1970s during a government shutdown.
It works because she receives extensive training to be apolitical. (And if she is political, there are repercussions.)
There isn’t. If the Queen ever steps in, it’s immediately a constitutional crisis that threatens the entire legitimacy of our democracy. Her role has been purely ceremonial for the longest time.
At least this is true for Canada. I have to imagine it’s very similar for the rest of the Commonwealth. Every instance of involvement that wasn’t ceremonial has been doing precisely what the Prime Minister has requested of her via the Governor General, such as dissolving parliament. Which I guess makes that ceremonial too.
It works because she receives extensive training to be apolitical. (And if she is political, there are repercussions.)