The new bosses require more than the casual four or five that go in for currency farming, you'd have to go in with a set up thats not favorable for farming currency after the NM and more people than you'd typically bring in. People rather farm the zone for money than kill the NMs for gear that might be out done at 99. Though if at 99 the gear is not bested people will attempt to do the NMs again. But having all the monsters the same level will make it so the dream lands are adequately farmable if they're more than 8 people. Last night I noticed that Dynamis val had 67 people, I cannot wrap my head around more than 18 or 36 of those going after NMs. Unless the NMs require more than 18 to take down...
Even then they stayed the full two hours so either they just farm pops the entire time and pop or they kill afew and farm... which again would make farming pointless for the rest of the zone if they're each going after an EP...