Given that it is a non-essential part of how the protocol works, I disagree, but I understand that reasonable people may differ.

PLC uses signed logs similar to certificate transparency. We have a lot of options for where to take it. There may be a distributed/decentralized hosting system if we can settle on a consensus model we're comfortable with. Otherwise it will be some kind of org management model.

The other direction we've got is did:web, which is already used in some cases, and has some tradeoffs but is a strong option.