True Damage Becoming Overused?

Ever since the juggernaut update in 2015, we've had these champions either get a considerable amount of true damage added into their kits in one way or another after a rework or have true damage since release (feel free to add to the list if I've missed any):

These also have true damage in the form of executes, passive effects, etc.:

And then we also have the Conqueror keystone in addition to the current Ryze changes on the PBE that add true damage to his kit.

This is not to say that any specific champion is overpowered, but I kinda feel like true damage is becoming an overused mechanic at this point. Shouldn't a type of damage that absolutely ignores all of the gold you spend on armor and magic resist be used more sparingly than this?