I think it's just sad that they didn't get the math right from the beginning. Seriously, f you have 3 1/2 years to design the game, how hard is it to notice that epic level monsters are harder for a party equal to their level to hit than at heroic level, or that epic level monsters will hit epic level characters more than 70% of the time? It also doesn't take much effort to add a +1 to hit and to defenses at every tier as part of character creation/advancement in the first PHB. What's even more sad, is that they went on and on about how the math worked. It's pretty apparent that it doesn't work as good as it should.