The excuse of recruit NA/SEA/… guilds is a pretty bad argument in this case. Unless you suddenly are able to convince people to join a German speaking community.
Also this 24/7 concept is all nice and well but then the servers should have never been split up by region. The language tags are even more ridiculous.
I don’t see any benefit in locking people out because they play at a different time then the majority of the population. Some kind of balance mechanism would be great though.