I guess where I live, if I call police like 12 hours after I drop someone off to say they aren’t answering the phone, they will think I’m crazy.
Where I live if someone is pregnant, high risk pregnancy, known to have almost passed out a day or two earlier, is alone in a house with two small children, no evidence they've left the house, not turned up for a doctors appointment that they should have wanted very much to attend, not answering calls or the door, then LE would make a wellbeing check.
That would be to ensure the person is not passed out in the home, needing medical attention, and that the small children are also okay, because if that person has passed out then the children would be scared and in danger as they are too young to look after themselves.
It has absolutely nothing to do with having dropped someone else off 12 hours earlier or someone's not answering the phone to me. The way you minimize it it sounds crazy. The actual way it was is 100% warranted for a wellbeing check.