For anyone who thinks this is even remotely okay, answer me this. Imagine that Copilot is actually just a gigantic PR campaign, and when you send a completion request, they do this:
They send the request off to a sweatshop in Bangladesh where a bunch of mechanical turk workers scroll through licensed codebases, find an appropriate snippet of code, agree on the best one, strip all of the licenses and attributions out, and send it back to you. (turns out they're very quick at their job)
How is this any different than what Copilot does with the purely technical difference that you're pushing code through an artifical neural net instead of a bunch of human ones. Why is that supposed to matter