You'd think the timing should reflect the typical terms of loans and loan volumes - so that sounds plausible.
When the default rate of those loans begins to creep up and become notable to investors, then people will get edgy.

I just hope it comes before our much loved and overpaid layers of incompetent management have destroyed all their manual production processes and replaced them with snake oil. If not a general economic downturn might start well before the ai bubble bursts.