While many in this thread are criticizing this choice, I actually agree with it. I remember in BfA I played during 8.0 and 8.1 but due to an intense work schedule I had to skip 8.2. When I came back in 8.3 I had to grind out the essences they added in on top of corrupted gear and the legendary cloak. It was so much time and the power gains were so significant that I couldn't raid. Which also was a problem because the more weeks of raid I missed, the further behind I'd be even if I caught up with the essences. It resulted in me just quitting.
Regardless, I have no intention of playing 9.2 so I don't really care all that much.