No, I said 1.5 mm too short, and 1/16 inch too tall. That height difference is negligible I guess, if you want part of your artwork going past the clear sleeve. My main concern is the width, because it offsets the spine and shifts the cover around in the case. Movie studios do this all the time, but their covers can be as much as a quarter-inch too small in that regard...which annoys the hell out of me.
Another thing I stumbled across with some of the CGC covers, is the poor scans for some of the back panels. The text looks blurry, those moire patterns are all over the place, and the pictures have zero detail in them. With emulators being so prominent today, there's no excuse for leaving crappy screenshots on the back. While retyping the summaries and such may be a slight pain, at least the results look far more professional...which is what seems to be the goal for most around here. If you're going to mimic the retail look, don't rely on scans alone. Its a good starting point, but I rebuild a lot of things from the ground up.