That's probably true. Then again, the recent release of HL features the Ethiopians vs Italians. Has there been a lot of play/excitement about those scenarios?
For my own part, I looked them over, but infantry in the desert just didn't appeal to me from a game-play perspective, even though it does interest me historically (and I like Command's old Lions of Ethiopia game for an operational perspective).
So I eschewed it in favor of Sword and Fire, which I find a lot more interesting (at least for tactical gaming).
JMO, but I really think more tank battles in the desert, ala Blazin' Chariots, would be great. That is what would fire me up to play DTO. I personally would have no interest in a desert module otherwise, new or not. I admit I don't just buy every new product that comes down the line though (except official - I buy all those), nor do I get too excited about most releases nowadays.