I couldn't help but wonder if the writers are just smurfing with them.
I agree with the hate against the psychiatrist. Whether they're blood related is trivial; they were raised together, which makes them siblings more than anything else. And makes any (suggested) sexual relationship more disturbing.
I also loved how Dex was eagerly on the "let's help the police" bandwagon for all of... 5 minutes? And then it's back to "I must get Travis myself!" even after DHS handed back the case. Speaking of terrorism, I'm not sure why Dexter had to be so secretive about looking up pictures of Adam and finding his wife, especially considering his stance at the time that he was going to share everything with the police.
And anyone who did not predict that ending immediately when the EMT was telling Dexter about the possible side effects needs their foreshadowing meters checked (Shlup). The writers have been very blatant with it this season.