SIK’s position is that calling in the cops seldom makes things better. Often, or usually, in his many experiences, it makes things worse, or even far worse.
It was his house, his assesment of the situation in which he was involved at that moment, with his experiences with his local police, and ultimately it was his call. Your mileage may vary. To second guess, or to plan ahead with a concrete plan, makes no sense. You almost always have options, and you almost never know in advance what those options are going to be, nor the full consequenses of your actions.
The contemplation of principles however can give us some direction.