Uhm… To all of you trying to rely on the argument that “it takes less time” and that’d somehow justify any and all problems it brings:
One of the main problems with the group finder is that people keep using it to find groups every time they play. The solution to that is to aim to use it as little as possible, and to get people to play with you regularly so you never need to use it again.
If you agree on a predetermined time to play with predetermined people, then there’s 0 waiting time. You just log on at the scheduled time, and instantly group up to jump into arenas, and thus the problem of time is solved.
That’s a way to encourage people to play together regularly on a macro scale.