I would say two things to that.
First, it makes sense that police services would welcome this legislation. I come from a family of police officers who were involved in fighting pedocriminality and the like. I completely understand the excitement, and it's necessary. It's no surprise that police forces are pleased about this. It's perfectly commendable.
Second, my sense is that the pressure is coming mainly from members of the Five Eyes group, which is looking for more and more visibility across the network, as well as from allies. Canada is indeed lagging behind when it comes to being able to provide access to those data. There's clearly some political pressure to do that.
It's probably the easiest solution for the government to say that it's going to bypass encryption to give police forces access to Canadians' data. Police will be happy. It's easier than allocating more financial, technical and human resources to fighting crime. At the same time, it will make our allies happy. That's the impression I have.