It will not be a problem for bigger studios. There are indie developer like me who do not know how to add copy protection and find it useless since the game is going to be cracked anyway. Also it's their second condition that will create issue. If anyone download game from here and pirate it on other website and looking at how many time this game was pirated I have to pay Unity a lot of money if its downloaded 200k more it. So basically it's about how they are gonna count those and they said nothing about contacting devs regarding pirate download but said trust the software.