Always good insight from Cody Christie, but I'm not drinking the Kool-Aid on this one. It was a dumb trade at the time, and it's only gotten worse in hindsight.
1. Berrios still had another year of team control. Did the Twins learn nothing from the Johan Santana trade? If you have good young pitching you cling to it. The ding against Martin, right or wrong, is that he has a limited ceiling. SWR was and still is a project. We had to give up a batting champion with three years of team control to get Pablo Lopez. Berrios should have fetched a similar return. (If they had signed Berrios they wouldn't have had to make that trade in the first place.)
2. The narrative being pitched by the media was that Berrios was hellbent on testing the free agent market and wouldn't sign with the Twins. Yet after the trade, what happens.....he signs a long term deal with Jays, under terms that would not have broken the bank for the Twins.
As you can guess, anytime this trade is discussed it gets my blood up.