I think it's all a bit stupid, to be blunt. You cannot berate someone for completing a game objective, that is, as the name would imply.... the objective. The objective of HM Ifrit is to ya know, kill Ifrit, but if 7 of the 8 people wanted to spend 30 minutes sitting around chatting about why Lala's with pink hair are disproportionately cute compared to everything else then well, that 8th player can be a bit "HUH?!". And let's face it, it's not as if getting 100k's worth of XP in this game is difficult. (I earned, let me do the maths..... 2.5m XP in a couple of hours without even trying earlier)

Personally, on Durandal I've never seen anyone farming DD, it's straight in, complete objectives, get it over quick before rushing on to the next Fate, I'd be pretty annoyed if the Chimera Fate popped and everyone was down at DD when the fun one pops.