"Upsetting the meta" that is the excuse that Blizzard keeps making for poor balance and/or slow changes. You have a few specs that dominate the scene while others remain in the dust for months, sometimes years. Then you got decisions that make no sense, for instance.. demonology had an undocumented change in 9.0.5 where the pets deal more damage under certain circumstances, that barely made the spec VIABLE let alone powerful then you have the Venthyr Rogue ability which is going to go live in a couple of days in a broken state (it can one shot people in PvP by itself) and the list goes on, it's just one hot mess.
tldr: it's quite annoying seeing your favorite spec being undertuned for months on end just so that Blizzard doesn't upset the meta, or maybe because the class has one viable spec and that's somehow good enough. I just don't get it, do you agree with said philosophy as a player? I'm curious.