Robert Hutton:

Had the Queen died earlier in the year, it’s not difficult to imagine Johnson harnessing the event to his great survival project. So we should be grateful she lived long enough to save us the prospect of Johnson in Westminster Abbey, mugging his way through Ecclesiastes and hinting that, in a way, she had been the Boris of people’s hearts. Think of it as her final service to the nation. 

This is a very good point.