They didn't want to take chances with RE4, as it is already very polarising. Really sad, too.
The amount of shit they removed from 2 and 3 was lame. Then they had the cheek to charge for the original soundtrack. But it doesn't matter anyway. It plays out of sync, and I think Ada's "death" scene had a different track put in altogether. So I didn't see the point to doing that.
Once RE4 came out, there was no going back. I sometimes wish it hadn't even been made. For I hate these polls where people always say 4 is the best, while degrading previous games because of their camera viewpoints or tank controls. But RE4 sort of still had tank controls anyway. It was just the camera got changed to third person.
But 4 is so overrated. The original 4 sounded like a better game, and more connected to RE as a whole. The final result is just a glorified spin off.