I think instead of a "mammoth-sized game" what he was actually talking was the first-person shooter...at least, that's the way the text reads.
Horror game sounds great--but I won't be interested in 10-hour adventure-horror games, either. I like deep and involved story lines and a minimum of 30 hours of absorbing game play. The 5-10 hour stuff belongs on cell phones and should sell at cell-phone game prices, too.
It is well known that I do not make mistakes--so if you should happen across a mistake in anything I have written, be assured that I did not write it!