Honest question

How does Katarina fit into Riot's idea of champions with counter-play. A.) She has assassin level damage, but it's aoe B.) CC isn't an option since she can land most of her damage before the first cc can hit. (Q->E->W->zhonya's(if incoming cc)/e(if she wants to get out/go to next target)/ult(if no cc))

Basically my problem with her is that her kit is that of a reset-assassin, but she scales into it much quicker than anyone else, and she can play with much less risk than any of the other resetters. Plus the aoe makes it so she easily wins team fights by herself.