yea this was a big reason why I stopped playing. Running a single mythic + dungeon for weeks on end and not getting the gear you need while getting fucked by RNG and getting gear that is NOT what you need. I tried to keep up, but RNG was absolutely atrocious. I was done after running Necrotic Wake Mythic + and getting shafted on my last 3 runs before I quit where NO gear dropped for me. 40+ minutes of my time to get FUCKED. This is not fun. This is not progression for some by brainlessly running the same shit over and over.
All while seeing others get the gear they need.