Yes, because formats have evolved. Cassettes and CDs still exist. However, we now have MP3 digital players. One day, there may be another new format out there. So, the private copying levy must apply to all formats; it has to be technologically neutral.
Furthermore, in 1997, when another Bill C-32 was under consideration and passed some years ago, I noted that there is a very fragile balance, in terms of exceptions, between the rights of users and those of copyright holders. That fragile balance is clearly destroyed by the new exceptions being introduced in the bill. The status quo has to be maintained with respect to the exceptions currently in place. They have allowed copyright collectives to apply and negotiate certain tariffs or agreements with users. Right now, the number of exceptions in the bill means that the fragile balance achieved in 1997 has been completely destroyed.