It doesn't matter what you would do. The vast majority of people matter. You say it doesn't matter if it's pirated because it isn't going to make money from English speakers. My answer is, if even one person pirates the PSP game to play the patch and decides not purchase a future localization no matter which system its on that is lost revenue
So there is a potential of lost revenue if we look at it like this
If that happens on a massive scale its Square-Enix's own fault for withholding the best game since FFX from the rest of the world