Love it or hate it, the way XI did it was pretty beautifully done aside the drop rates. Stuff can come from regular monsters in raids or special monsters or an end chest - Basically nothing that would force you into one "spot" then leave, the whole raid has something. Sure you'd skip some more annoyin NMs (because they'll wreck face), but you don't skip entire raids after you kill 1 monster unless it's the boss itself, e.g skipping unnecessary farming to go kill Dynamis Lord/Arch Dynamis Lord.