Cost doesn't only mean money. Development costs also include time and other resources. It could very well be that it wasn't in the monetary budget for that patch, or it could be that they were spread too thin between OC, CE, the graphical update, and other things, and they just weren't able to get it done this time. It's unfortunate but every team has limited time and resources no matter how big it is. He probably shouldn't have said anything since the average person obviously hasn't spent any time in that sort of environment and isn't going to understand what he's saying.