Well this is kind of how it always goes with Beta's. Pretty much every Beta I have seen starts by inviting Guilds/Clans, and testers they know have experience or were useful in the past. Well them, and the Press. Press get in first like Totalbiscuit the lucky bastard.
At least we know Vets an key holders will be in the early waves. Which basically means anyone can get in if they go buy PS1 or PCgamer though lol.