Citation needed. Governance and finance absolutely need human judgment recovery edge cases such as "My house burnt down containing my ID (keys) and I need access to my bank account to rebuild it"
Human beings cannot do that.
It seems the common approach now is to make a v2/v3/etc. of your protocol and let your own users migrate. Previous versions will still run forever, but your frontend can push migration paths.
"My house burned down and inside was my spouse, who was my reco ery contact"
"My recovery contact died / isn't speaking to me / is backpacking in the Himalayas"
The problem isn't technical. It isn't a formal mathematical problem. It's that the real world is messy.
There are plenty of other classes of problems too. "This person committed a crime and their assets need to be seized", etc.