For modern WoW, even in dungeons (M+), if you can’t follow a perfectly executed “script”, nobody is interested in grouping with you. You don’t really need a stack of addons but an encyclopedic knowledge of maps, mechanics, strats, affixes, etc and the current meta is the norm and expected.
It feels barely related to D&D tabletop sessions or classic fantasy anything and more like a group Mario 64 speedrun or something.
Is that even a new phenomenon? The notion of a MMORPG "raid" as a highly orchestrated event was already well-established 15-20 years ago (recall the infamous "Onyxia Wipe" recording, for instance). It may have even predated World of Warcraft; older MMOs like EverQuest had similar dynamics.
Raiding in original WoW covered a wide spectrum. There were a tiny handful of hardcore cutting edge raiders, some who wanted to be those cutting edge raiders but weren’t (that Onyxia video), super chill raiders who were 2+ major raids behind and mostly used raiding as an excuse to goof around in Ventrilo, and everywhere in between. My guild fell in the last of those categories and it was fun.
While being “serious” became more popular in raiding over time, prior to M+ that mentality never came to dungeons. Up until its addition those were more of a go in with whatever ragtag crew you could gather together and have fun kind of thing, which has sadly has mostly been supplanted by solo content in modern WoW. There’s little content that requires a group and is low-stakes enough for the social or fantasy aspects to take precedence over the competitive ones.
It feels barely related to D&D tabletop sessions or classic fantasy anything and more like a group Mario 64 speedrun or something.