I'm always trying to learn mechanics from these new dungeons(last time i played Irontech Forge was hardest if i'm not mistaken) but most people don't really care to explain, they're like "just buff up(i'm WL) and dps, don't worry about mech", even a brief explanation is hard.
But i'm doing as u said, at the moment my weap is sitting at Aransu 7, got cosmic soul already and now upgrading Heart, farmed MSP to get Emperor's Tomb soul shield.
but as you said, the game force everyone into dungeons to play events...