Good trade for Toronto, they needed more Ibaka than Ross and a late 1st this year. However, I highly doubt they are above us with this movement and with Lowry and Ibaka waiting for big contracts next summer, their ceiling to improve has ended. Or at leats logic says that.
Good trade for Orlando, they get a nice rotation player and a first this year for two months of a player that only would make win some games (which they do not want anymore).
Maybe, Boston tried to get Ibaka or maybe not. And a dealbreaker could have been us not having a 2017 first rounder. Well, a normal one

I'm ok letting Ibaka go to the Raptors, consequently. Rozier can be a very good backup for years or get us a better trade aim. He is cost-controlled for now.
Don't enter panic mode, please. 2017 is not our June yet.