This should be a standard requirement for abandoning an internet reliant product (with all IP and internal documentation released and becoming public domain in the event of a bankruptcy, and keys handled by some consumer protection agency capable of facilitating community projects working to unlock them for owners).
But questionable value of the product aside, the fact that they're making the effort to not be assholes and try to do what it takes to give their costumers' products the life they can is better than most, so they deserve credit for that.