I mean it's sort of the thing to have mega servers now, gw2 did it, wow did it (essentially), eve always had it etc It's a nice way to ensure that there's always people to play with without having to worry about managing individual server populations.
I do feel for the rp folks who are upset although I think the reaction is a bit overblown. We'll see!
I thought it interesting that people were howling for megaservers at launch when there were queues and now there are people howling again that they're planning on implementing them. Well ok not interesting, probably about what I expected really.