Originally Posted by Certainlyt
We made Darius's ult true damage for a two primary reasons:
First, we wanted the Darius player to have some certainty over whether his ultimate would land a killing blow. Physical damage mitigation varies widely across champions and builds. It was extremely "mathy" to have to calculate what health was needed to score a kill.
Second, we wanted to make sure Darius's ult did not kill squishy ranged ADs and mages from full with low bleed stacks. When the ult was physical, the damage had to be so high to make it feel good against, say Renekton, that it was abusive versus Caitlyn. Notice that in the example you gave, Darius's lvl 3 Noxian Guillotine at max stacks with 60 bonus AD would be doing something like 300 physical damage to a lvl 18 Renekton with a Randuins and an Aegis.
This is possibly the most ridiculous post I've ever read and only goes to further prove that the designers no longer have have any idea what they're doing. It's unfortunate that being a game designer doesn't have any requirements.
Making players think is a horrible thing. Players shouldn't have to get a feel for their champion's damage in order to perform well. That's not fun. In fact, let's make Garen's ult true damage, because it's unfair to make players figure out how much health enemies have to be at to kill them.
And while we're at it, let's make every ult true damage, too. Because when I'm playing Fiora and I ult the enemy armor stacking Renekton, it just doesn't feel good, and it's too abusive when I ult Caitlyn. Better yet, let's make all damaging ults true damage, so they feel good!