duh, of course "mega servers" are merely a way to try and obfuscate the bitter news that they have no option left but to consolidate a dwindling player-base onto a very few servers.
as for the OP, those numbers look believable. as a recent Fatman reroll, I'd consider the numbers on that server as they currently are to be close to the lower end of what a population size can be to guarantee short queues easy group finding and an all around good time. Which also means, I'd welcome a substantive influx of more players to that server.