Honestly, how often do we lose the game after a T1/2 fizzle?
Usually we end up with 1/2 grisel in the yard, 0 or 2 cabal therapy on the opponent's hand (and generally after at least a probe), and a hand of 7 chosen from 22-25 cards.
When I lose after a fizzle, it's much more often because discard and countermagic have slowed me down, so I go off later in the game, with a smaller life total. And then I generally do not need mostly IMS, but entomb or shallow grave.

So from your numbers .dk, I spot 2 games out of 50 from which chrome mox would have been better than a land. But I bet that your chances of winning these games would have been better without chrome mox in a real game (If you get FoWed, you're better with this additional card you pitched). And you ignored all the hands which were not starting T1/2, in which mox is awful.