Nice screen shot. Now show us a few of these "normal" 5k crits. Vs low valor targets I am confident that you could hit 5k easily with all of your consumables popped. But vs a BM that just isn't going to happen; at least not on a consistent basis.
Also - saying that a certain circumstance is "normal", especially when you are forced to use every consumable available to you in order for it to occur, is a tad misleading.
I'm not saying that you are full of it. I'm just saying that I would like to see proof - ideally on several BM's of various classes.