Oh, that's just sophistry. When Copilot includes superscript links in its answers, the links always accurately go to the site where they got the presented information.
If you Google a quote from, say, an article, Google will usually find the right article because its job is to search verbatim. AI isn't like that -- its objective is to synthesize a conversational answer from numerous sources. If it comes up with an out-in-left-field false answer then you can validly criticize it, but just not being able to find the source of a specific quote like a search engine does is not its job.