What's so difficult to understand.
By his wife's account he was really pretty ill. He has family nearby. His wife can't get home from hospital with his son. So why did the sister not go and pick them up. If they were prepared to help him out.
I know exactly what it's like to be away from home. We have worried about how we will cope if we are both ill at the same time.
None of that involves a very long drive north of the border.
But if it did happen and we did go North, I don't think my family would let us do it all ourselves if we were all really ill.
I know if I was so ill in my parents grounds, then DB would step up and go and pick up from the hospital. Probably breaking lockdown yes, but he would have done it whilst taking precautions.
But we all know the DC has lied today.