I'm not sure, but did you see his answer to the question at the Strategy AGM from a Bitcoiner about them if they intend to release their wallet addresses. He gave a 7 minute BS explanation about why it's bad to release wallet addresses.
Now for you or I who are private citizens, he is correct. But for a public Bitcoin company, or a state like El Salvador that holds Bitcoin on behalf of it's citizens or shareholders, you are obliged to prove that you hold the asset you claim to.
Ironically, I was reminded of another interview Vitalik gave some time ago exposing Craig as Faketoshi, explaining signal intelligence, which means if offered an easy or hard path to prove something, if you choose a hard path, you are normally lying.
A 7 minute patronising talk explaining why nobody understands the security of publishing wallet addresses on Bitcoin, instead of just publishing wallet addresses is pure OPSEC signal of dishonest intent.