I'm more concerned about the number of people that will be excluded from the content due to the low party size limit. Currently when my LS runs NMs we can have anywhere from 8 to 24 people come for the event. If 14 turn up we do two groups of 7. With these raids and the 8 player requirement you've then got six people sitting picking their noses while the other 8 have fun.
Of course you can "exploit" that requirement by bringing along filler mules which I'm sure will happen and I'd have no problem doing if it gets me to play the game rather than sit doing nothing.