Again continuing from my previous post because character limit:

The secondary stats on Diadem gear should not be able to go that high; the maximum the secondary stats should be allow to have should be something like 120/the number of secondary stats. So the item in the picture I inked, should have at most, 30 in each of those secondary stats. If it only had 3 secondary stats it can go up to 40, and if it had 2 it can go up to 60.

As it stands, there is little reason to do anything other than Diadem because the potential of the Diadem gear is just too high.

A catch up patch simply doesn't mean releasing gear that is better than end game raid gear.