Not all attacks have splash.
Right, one or two.
But cover opens up a more meaningful definition of flanking, and the strategies that come from that.
This game is not about positioning or flanking. Its about spectacular explosions and Wow skills effects. There are 7 >>SEVEN<< schools of magic. Only 2 >>TWO<< schools of "physical" face to face combat. Those 2 schools have most skills AOE splashes or range attacks. This game has evolved. There is not longer a warrior class. Most badass warrior casts 8 of 10 action he does.