apparently one of the things people hire this guy for is just to wave goodbye when they move away. I agree not just anyone could do that in an appropriately sensitive way, but to say the requirements are astronomical seems like an overstatement.
This reminds me of professional mourning [1]. Throughout history there have been professionals that help families grieve in different ways. Hiring someone to wave goodbye when you move strikes me as a similar function. Both are offering emotional services during a time of transition, albeit in very different ways.