Being able to actually know the stat thresholds in games like WoW was really helpful as some stats like skill speed are genuinely useless until you hit the next breakpoint that actually lowers your GCD.
the silly thing is that you can actually know all these things from datamining, and confirm them through parsing.

They just dont display them.


I thought there was a point where crit overtakes direct hit for tanks in general for dps gains. Is that not the case?
This is correct.

Because crit affects crit chance and crit damage, it scales exponentially and will eventually outscale everything for almost everyone. It tends to happen at either the .2 or .4 patch (this expansion looks likely it might start happening at .2 for a lot of classes. Healers are already safe to get into their crit/det melds, but that has a lot to do with how modular piety is and how questionable spellspeed is right now)