1 thing though, tab for auto complete still does not work for me.. ever
I can't speak to whether or not using copilot in long lasting projects would be a good idea, but even if you just tagged the copilot generated code with a comment that said '#TODO: Verify this is correct' I still think it would help you get a lot of work done that you would normally have to switch to stackoverflow to do.
One thing that I found very interesting from the article was the idea of anchoring bias, I definitely felt this a lot. When I used copilot to generate some nontrivial functions that were directly related to my problem, if the code did not work and I ended up erasing the generated code completely, I am just realising now that when I reimplemented it myself I was still essentially using the algorithm copilot had come up with.