I don't use Copilot in particular but in the software space, everything is constantly changing, and the models are trained infrequently so they are never familiar with the things I ask about. Reality is outrunning the models for now but that may change.
There's a Black Mirror-esque movie plot idea in there! Everyone starts using bionic implants to filter out offensive parts of reality like people they don't like and stuff, until one day all the filters start falling out of sync with reality...