Gear Progression after 2.2

[Airikay]

You have basically summed up the difference between vertical progression and horizontal progression. And to answer your question "is this going to happen every 3-6 months"... Yes.

Kinda, but to extreme approach. They're doing what WoW does in every expansion in every other major patch. Bit extreme. Can even apparently get i90 gear crafted in 2.2 too.