I'll be frank; Balmung is a congested server. Anyone from the congested popular servers should've expected this.
That aside; have you tried world visit at random? It helps. (when login)
While it is annoying, I don't think the harsh comment was warranted for this launch aside from overpopulation which is always a good thing to have many players is the only downside, it's like Yoshida Naoki has spoiled his players so much that we can't even have patience anymore.

That is easily said for someone like me, I get it.
But know that everyone has to deal with it the same way.

EVEN those who make this game and play the game deal with it.
TRUST me that if they had a solution they'd not solve it tomorrow but TODAY.
Because of the problems they had; unable to fully fix this, they enhanced other areas.
For first time, I experience no lag, despite crowd, I am in shock. Not that, but the almost insta-teleportation.
Imagine this when the congestions are over! Try see it on the bit brighter side.

However, my comment may seem dismissive to your suffering and others, please do not think this way.
I feel for you all, and myself because it does test our patience. But what I wrote above, I said it harshly to myself when I got to the height of frustration myself, and I found myself feeling guilty. The devs, everyone, has worked so hard, it's a bad luck within fortune (I do not speak English first language, so please excuse me if this saying it a miss!)

I hope everyone who is frustrated will feel serenity soon. I handle it differently; i log in before peak, and I go to bed during peak for the time being ^,^