It's interesting to me that this happens in an industry where the entire business is one of trying to aid someone who's lost something precious. Some things shouldn't have corporate branding. They definitely know better.
I don't like this and think prosthetic manufacturers particularly shouldn't do it, but it would really surprise me if anybody in the company even had a personal unvoiced doubt about doing it.
Truth.
I've had a habit of removing all branding I can from the things I buy (particularly clothing) for most of my life. That got me to tune into it, and when you tune into it, you can't help but notice it's literally everywhere.
"I branded his stone with Pepsi, because he always drank Pepsi..."
Few companies want you to think even in passing "this guy used their products and now he is dead"