I agree.. I personally would've made sure EVERYTHING was done and even stay a bit.
It is odd.. but families are odd as well. Out of the 12 years doing this, I can only count on 1 hand the times families were actually very helpful. Most times... I've literally seen it happen before. Son or Daughter drops client off and speeds off, I've even had the sibling call me "Oh I dropped so-so off in the garage and left without closing the door.. oh that was 5 minutes ago -- click".
Thankfully I was nearby when that call happened. and was there in less than couple minutes. I'm even dealing with it now the past 2 years I've been trying to get the siblings to be around their parent more and more, but it's like I'm rubbing salt on a wound each time I tell them the importance, especially getting closer to EOL.
It bothers me so much when I see it, and I've seen/heard worse than what 'supposed' IL did if that is the case and not surprised. I'm not defending the IL either, just giving a 'it is plausible' scenario.