For those still upset about the finale and long wait...

There was confusion over whether ATAG2 counted towards the 10 episode order made by Adult Swim. When Doc & Jackson learned they'd have two less episodes than they thought, they decided to go with quality instead of hacking it down. We need to remember... In the end, by the time we're all old... most people who watch this show will have done so by binge watching it online, and all that'll matter then is the quality. Not the wait we all once made together. It might be a pain right now, but ultimately it was the right call.

source: http://screencrush.com/venture-bros-season-6-finale-special-7/