Of course it's good that the PS2 is getting RE4, it means that more people will get the chance to play this fantastic games. Though the PS2 version's graphics aren't as good as the GC's, it does have Seperate Ways to make up for it.
Besides, the game has been on the GC for over 6 months now, think of how the PS2 fans feel by having to wait all this time just to play it. We should be happy that we've had it exclusive for so long considering how fantastic it is.