On 25/09/2019 09:21, nightjar wrote:
On 24/09/2019 12:30, Pancho wrote:
On 24/09/2019 12:19, nightjar wrote:
...
It implies that he wrongly advised the Queen. That means he should
now resign as PM.

Why?
...

Because one of the cornerstones of our system of constitutional monarchy
is that the monarch must be able to rely absolutely on the advice given
by the PM. This judgment provides the basis for the constitutionally
dangerous precedent that the monarch might have to reject that advice.
The only way to avoid that is for any PM who wrongly advises the monarch
to step down from office immediately it is determined that has happened.

There is no basis for saying that. It was completely uncharted
territory. His actions may have been proper or they may have been
improper, but there was no way of knowing which at the time.