Too soon
When you have to deal with a sudden bereavement it can be difficult to think of anything else, especially your job. Rather amazingly, this individual managed to rearrange his work schedule for the time he would be gone, make sure he had contingencies, and let his boss know he would be contactable for emergencies.
All that is pretty impressive and any empathetic boss would have been mightily impressed by his efforts and offered him sincere condolences. To be fair, that was what this boss tried to do, but autocorrect wasn’t playing ball. Instead, he made what looks like a pun on death. It’s definitely too soon for those kinds of jokes. He must have been mortified.