honestly, not really. the previous explaination seemed ok how the calculation is made, as a forecast with the player strategy preset. but there is a second decision as described.
so if player A choses a door, host reveals a empty door (assuming not knowingly, they could have revealed the...
in a fair game, if the other 999998 box had not revealed the prize, the final two are still 50/50. the only "some reason" one has been overlooked is a rigged game, so yeah, switch.ludic fallacy and that. i can see why this would exercise the Scientific American readers, a clash of probability...