People that would not buy the game that will pirate it once it is cracked vs people that could not wait and just bought instead of pirating it. The people that would wait until it is cracked would pirate it immediately if it was cracked before the 3 months but will also wait to pirate it if it is not cracked in that 3 months.
Sure, but it doesn't blow the statement out of the water. You would have to find out how many times a game was pirated, then compare that to the extra copies sold that make up that 20%. Plus, not everyone who pirates games says that.
It's probably because people want to buy the game without Denuvo DRM. And if the official way has it and the cracked version, then there is no reason to buy the official version. They should analyze how much the game sales go up, once the official version drops the Denuvo DRM. That's when I consider it buying or many others as well.