If I needed something verifiable, or wanted to learn the material in any depth, I would certainly not rely on an AI summary. However, the summary contained links to source material by known experts, and I would cheerfully rely on those.

The same is true if I imagined there would be misleading bullshit out there. In this case, it's hard to imagine that any nonexpert would bother writing about the topic. ("Universal torsor method" in case you're curious.)

I skimmed the AI summary in ten seconds, gained a rough idea of what the speaker was referring to, and then went back to following the lecture.