Originally Posted by
Donkeywing
Tbh that graph does require a bit of nuance. Without going too much into it, stating you must have 2 paladins is a bit of a stretch. You can swap auras and still have okay uptime on ret aura because you definitely won't need devo aura on the pull of a fight (and at other points). It does require a bit more management etc, but I don't think it mandates an entire raid slot. Especially when there are difficult choices to be made. In this graph it kind of looks as if 'mandatoy' is interlinked with the concept of an ideal raid composition. However when you have to make choices between high performing specs with the perfect dps profiles for a tier, or a 2nd paladin, you should consider the 1st option for the best raid performance.
Similar arguments can be made against ench shaman although theirs is more complicated. Their raidbuffs relies on specific specs interacting very well with it. If, for whatever reason, they don't synergize well or these specs are not brought to the raid, their buff loses a lot of value. The value they bring might swing down hard during an anti melee tier, unlike DH. I'm not convinced that their position is ''minimum mandatory''.
Raid buff/utility discussions cannot really be dumbed down to a graph in my opinion. It's open to a lot of interpretational problems and it's mostly theoretical. In practical raiding theory does not always allign with your best interest.