That said, if your group feels like it, you could introduce a house rule for it, for example "Hits requiring a to-hit result greater than ten still hit on a ten, but can only cause "Suppressed" results, no wounds or kills". Representing more or less unaimed fire which might cause a unit to keep its heads down.
But this would be a totally inofficial addendum. The "official" stand, which I also support since it speeds up play a bit, is Björns line of reasoning, i.e. no hits possible if to-hit number including all modifiers exceeds ten.