Has anyone had experience with running lv30+ dungeons with people who are using a class instead of a job? I'm fine with it in Haukke Manor, but I've run Brayflox Longstop and Sunken Temple of Qarn now with archers, gladiators and arcanists. When I questioned one of them about it, they cited the wider selection of cross-class skills (though this person was also auto-attacking for most fights). Is there any validity to this? Sure you can borrow skills from all classes, and you get twice as many compared to being on a job, but you are also missing out noteworthy stat bonuses and job specific skills.
So can anyone justify this behavior or can I just continue assuming that these people are ignorant and/or lazy?