I really had no problem with the missing in X-Com, I actually liked it because it improved the game by forcing you to make wiser tactical and strategical decisions. If you could not miss in the game, then it would have made many of the mechanics absolutely redundant... in other words, it would have dumbed the game down and made it way too easy.
It is basically rather similar with a RTwP game like Baldur's Gate. You try to improve the stats of your chars so they don't miss or don't miss as often and you accomplish this by making wise strategical decisions.
Btw, in Fallout you could miss too... and sometimes it hurt too. You had to make wise tactical and strategical decisions in order to reduce the chance of missing and improve your chance of surviving in case you did miss. I never heard anybody say that it was a bad mechanic.
And I'm perplexed by Josh's comment.