ITs ultra simple. PPL dont like feel bad moments. IT ruins them overtime. You can only brick so many items before other games look enticing especially when you ruin really great items that you know could have been once a season. Imagine getting a godly focus with Attack speed, crit chance, and 4 frozen orb. This is easily worth 40+ billion.
How are you going to feel when you brick this with Blizzard size 5 times in a row? Sure this is an ultra rare example but its happening more than you think with so many players playing. The changes to +1 temper per greater will help quite a bit but not eliminate it. My plan does eliminate 
All games should focus on feel guds instead of bads but Blizzard has stated they want u bricking items as part of process. This is a very risky and misguided view. This is going to push ppl to other games eventually and they have already admitted it was too bad with changes but they changes were not enuf. The manuals need to be fixed.