Zeus,
Never mind. What annoys me about forgotten submissions is that a third party may suffer from them. You do very well, your direct opponent in the rankings has a bad day, but scores 3 points anyway because his opponent forgot to submit, and you are out of the competition! That kind of stuff.
Applies only for league matchdays, but not KO matches as in our case. In addition, in this particular case, it didn't matter at all, we'd both have gone through no matter who of us would or would not have submitted predictions.
We'll meet again in mid-April in the league stage and (hopefully) in one of the playoff matches. See you there!
