Not what I would have expected from a 'one-shot'. Maybe self-supervised would be a more suitable term?
See also, "zero-shot" / "few-shot" etc.
We're essentially trying to map 'traditional' ML terminology to LLMs, it's natural that it'll take some time to get settled. I just thought that one-shot isn't an ideal name for something that might go off into an arbitrarily long loop.