I believe the implication is that if AI is really The Second Coming (or First Coming, if you prefer), then banks would want to keep the debt and the potential gains of said debt. Or rather, there should be an overwhelming demand for said debt.

Bond guys aren’t emotional. Inflation is heading up as are rates. They’re unloading stuff from their balance sheet that will depreciate in value.

It’s not necessarily a statement about AI, it’s just finance and accounting.