SE tries to make the game more casual friendly with these easy dungeons but it ends up having the opposite effect. Speed running becomes the norm which is stressful and difficult for tanks and healers, and not in a fun way. A gap forms between the experienced, well geared players and the inexperienced, lesser geared players. The tanks that don't have speed running for each dungeon down to a science can't perform at the expected level and as a result end up having miserable experiences.

Even though I'm a pretty experienced speed running tank but I don't touch 4-man 50+ dungeons anymore. I feel sorry for newbie tanks who attempt that content. It's far too stressful.