Hah, didn't I call it when I said that the ride of LLMs and ChatGPT, et al. would mean that actual user-generated content would become all the more valuable? It seems Google is coming to that conclusion too.
Nice catch and thanks for checking on this, will take a look.
Edit: We currently use microdata to present our metadata, so that may need adjusting. Might be when we moved to Harmony that wasn't ported over.