I have to agree. The finale seemed like it was written by someone that had NEVER seen the show. The Angie and Shade we'd come to know were capable and careful, very good at their jobs, and would have throughly vetted new clients--especially ones that were asking A&S to break the law. They took the clients' story at face value even after meeting the supposed bad guys (and both "bad guys" came off as nice guys). Even the bit with Jules seemed off. Sadly, someone has now decided that "little" stories are not enough, the show has to have a major overarching mystery that has national/international implications. A lot of otherwise good shows have been destroyed by this approach. If the Private Eyes PTB wanted a big story, MAYBE they should have done something with the key that Shade found in the Year One season finale...the key that's been ignored once he handed it to Angie.
I'm just going to pretend that last week with the brewery was the season finale, and this never happened. That episode was well written, well acted, and the characters were true to form.