True, but I'm not talking about stacking max avoidance. You can't ignore EH, but you can't dwell on it either. If you stay above 60% hp for a whole fight, you're wasting 60% of your hp which you could put into mitigation/avoidance which will reduce the amount of damage you take AND the amount of healing required to keep you alive.
By EHA, I'm referring to math which encompasses more than just the worst case scenario, but also includes: TTL, Chance to Die, Healing Required, and Average damage taken. All of these numbers are basically derived from the same formulas, but change PER BOSS based on boss's raw physical damage, attack speed, and "specials". In other words, there is a lot more going on in the formula for "best" gear than just saying EH or avoidance always win. It's a balance. Typically, once you have "enough" EH necessary for a fight, stacking avoidance is going to be better.
I'm a numbers guy..... and your number is up!