I don't know why anyone would be surprised by the Jays being quiet this offseason.
Firstly, most of the roster was set going into next season. There were several moves made last off season, and very good ones, but they were also made early in the off season and things got quiet afterwards, maybe that's their MO, even After AA. Secondly, whether some want to admit it or not, the Jays are not a team FA have at the top of their wish lists, to say the least. Now, once a player has played in Toronto, then it's a different story, as evidenced by their ability to re-sign Estrada and to bring back Happ.
As far as the BP goes, it looks better to me going into 2016 ST than it did going into 2015 ST, some just have a short memory. I, for one, was glad the Jays made the moves they made last and this off seasons, especially if the alternative was to focus on the BP at the expense of other moves that were made.