I'm not really surprised at all. In fact, I wish other developers were more open about that sort of thing. There are some people out there who want to play certain games, but either don't speak the languages they were made in, or are in a region the games are locked out of. That's not money lost from the developer, they were never in their market in the first place. And sometimes games are so old that actually getting an original copy and the system to play it on are simply unfeasible (and it's not like a penny of that would actually reach the developer at that point).
Extra Credits did a bit on that sort of thing. Their resident developer said if that's the case with those gamers, he would rather them pirate the game and experience it than miss out because they made the mistake of living in a place the game wasn't made for, or not discovering the game until more than a decade after it came out.
That is the mistake so many developers are making with their insane DRM schemes. They're putting their bottom line before their customers, and only giving them fewer reasons to buy the game new and legitimately. People who are going to pirate the games usually decided long before it came out that they were going to pirate it. But if the opportunity to get it legitimately is readily enough available, the vast majority will go after that first.
Valve did this recently, if I recall correctly. They wanted to start selling games in Russia through Steam, and they were encouraged not to because to many developers have said they lose a lot of money due to piracy there. But Valve has had great sales rates in Russia, all because of how easy and accessible Steam is. There aren't a million hoops customers have to jump through when they buy the game. It's just buy, download, play. No strings attached, no DRM locking you out if you lose connection for a little while.
. loving the game.