Am I the only one feeling that all (or mostly) AD comps are much better than other comps?

Every time I fight against an all AD, or mostly AD comp I am like, ok good, I'm a tank and I only have to build armor and health and if my team gets a little armor we should be fine. But then they push so hard, and the armor nerfs are so noticeable, that there is actually no difference in your defense as if it was against a mixed AP AD comp with your mixed Armor-MR defense. And this has happened even with a Taric in my team. Am I the only one feeling like AD totally dominates AP or mixed comps at the moment?