This is so wrong. How would you even write a nonsense like this?
If you want to get ultra lucky, you need low crit rating and still crit a lot at important times on 1 great attempt. That way you get a lot of important crit while still having a lot of mastery for higher crits.
Crit is a stat that doesn't increase your potential highest dps AT ALL. (For the exact same reason why it doesn't increase your worst case scenario.)
I take it you believe that worst case scenario is the best way to measure consistency then.
So just to give you another example we should only use on-use trinkets. Since 25 % crit chance is so low we can't rely on it to do anything, I hope you agree that trinkets from Thok and Galakras are very weak as we can't hope to ever get them procced with only a 15 % chance.
Say you have a 4set including legs and you get the 3-socket legs from Garosh non-warforged. Should you break your 4set to get that extra socket and higher socket bonus?
In my opinion keeping the 4set results in higher consistent damage, because you will get at least 1 4set proc in a fight 99.999 % of the time resulting in higher damage.
Yet the worst case scenario argument calls for replacing the legs because in the worst case scenario where you don't get a single 4set proc, having the 4set over one extra socket is wasted.