Oh, a legal memo like that, for something that is going to be high-visibility and you want to get right and you want to win, definitely took more than a few person hours. I bet several people were working on it for a few days, minimum.

It's also something that requires lawyers/law staff, not just random people, for maximum effect.

But yes, this is definitely a positive thing! I'm not sure anyone but the EFF would have done it succesfully, I am grateful to the EFF... and, yes, to github for their response, which not every company would have had.