It's the concept of making it a 'live' performance I find morbid.
People die and they leave behind remnants of themselves in various ways, I have a picture of my Granny in my living room as an example. I don't think there's a suggestion when someone dies we obliterate all trace of them. It's the idea of animating the memory, creating the buzz and atmosphere of live performance and projecting a characterisation based on snapshots of recordings and imagery that I find very uncomfortable and quite different from watching one of the hundreds of thousands of films starring deceased actors or buying the various consumer goods that bear the name of their creators.
The whole thing reminds me of the 'Be Right Back' episode of Black Mirror. The incomplete recreation of a person using a jumbled together catalogue of memories and 'evidence'. Each to their own but it's not for me.