It is not as simple as you make it sound. You can't just say "oh my opponent has a bar of meter so I'll just hold block". You have to bait out the armor moves. Good opponents will will sit on their meter until an opportune moment.
I'm talking bout chars who we see the most using armor moves frequently to get out of bad situation or to punish there opponent and I did include Rain as one of the 5 gods of armour and I think I should of had add skarlet as well don't no yet. The reason behind me not adding Kung Lao is becasue (This could be a maybe) his Ex Whirlwind spin is not safe on block, it has -13 frame disavantage so any attack below 13 frames can beat it and in a way you can kind of tell that your opponent is about to do the spin.