Glancing through an Atramedes log from two weeks back, a DK app tank was taking 70k hits for the most part. So it's definately higher than Blizzard says but not quite as high as is portrayed.
I do see a couple hits in the upper 80k's but they may be outliers and I dont know why they're happening. It's possible Scarlet Fever dropped off, which makes things even more fun!
From one of your Atramedes kills and with a warrior tanking.
[21:08:06.687] Atramedes Modulation Frayed 48998 (R: 12249)
[21:08:08.361] Atramedes hits Frayed 104261
[21:08:10.259] Atramedes hits Frayed 10807 (O: 65369)