I don't think he was trying to be derogatory or that he was encouraging people NOT to self custody, but obviously if you position yourself against the state, the state is more likely to push back. And if Bitcoin can grow ALSO in trad fi, then it would increase Bitcoin's sticking power.
Governments, especially in America, don't like to fuck with capital markets. They'll violate all your rights but that one is off limits. He's right to say that integrating Bitcoin in the traditional economy reduces risk of seizure.
If there were to be seizures, your custodied Bitcoin is not gonna be around for long tho.
People have more options to access and use Bitcoin today than they did last year. I think that's a good thing.