I have a hard time believing that anyone who holds/controls large sums of bitcoin are going to keep it in places that can be identified as being owned by one person or entity (unless they are a public company or a government that has to make those kinds of disclosures).  Private individuals or even private institutions should be disincentivized in being known for controlling large amounts of bitcoin.  So even with something like 130k BTC, there might be some preferences to not keep more than a certain amount in any one place.. maybe less than 10k in anyone location?

By the way, I could understand/appreciate that if there is a private trust or some kind of a joint ownership, then there might be some need to create some traceability regarding sources, so the other joint owners know about fairness and accountability.. so maybe i am arguing against myself to consider that there could be some cases in which accountability or tracking of ownership is preferred.  Oh, as I am typing I just considered another case of inheritance, so a private individual or private entity might want to show ownership so that if anything ever happened, then the heirs (or the beneficiaries) will know how much BTC is out there and the various locations to find the BTC.  Anyhow, I am having some difficulties appreciating very many situations in which there would be incentives to have very large amounts of wealth to be traceable to private entities.