Agreed. But keep in mind that we are in "beta testing" of the catalysts. I'm sure the tweaks will come soon.Armor Rating should be less potent across the board. It's already popping up as a meta for rift battles. And with the limited number of anti-armor characters and the limits on how many times you can use each fighter, it's just too difficult to deal with multiple nodes with armor rating on them. Armor Rating catalysts should have a 5% chance to proc armor when hit, maximum. Otherwise, you're able to make multiple nodes that are as tough or tougher than the Reactive Armor node. I thought catalysts were supposed to represent a lateral shift in difficulty, not a vertical one.
At the very least, there should be some incentive to diversify catalyst usage so that you don't just put an Armor Rating on every node in your defense.