Probably just rocks that no one had noticed before. I could look under my couch and find 500 dog hairs that I have never seen before, but that wouldn't mean that they had just sprung into existence or been flung out of a black hole, just that I hadn't looked there before. That video told be absolutely nothing about them at all, or was 17 minutes of waffling sciencey sounding nonsense and baseless conjecture.

Terrible video. Total snoozefest. "The JWST blah blah blah."

99% of the video wasn't even about the objects, and they are just junk we didn't see before. I want a refund.