User blog comment:Lukeatlook/Pyro's Item Overhaul 7 - The Tank Project/@comment-8468980-20141221193529/@comment-4813965-20141222002014

If you look at the bigger picture, bruisers actually get less value out of these items. The block from Randuin's Omen is more effective with higher armor - as a standalone item it's way worse than before. Flat MR on BV and SV is down from 55 to 50. Malmortius has 10 less MR.

Bruisers deal damage, and get just enough tankiness to get away with it. These changes decrease the raw value of core tank items unless you stack more than one of them.