Parliament's primary role is to consider whether it wishes to pass this bill. If it does, then it obviously puts in place the framework that gives authority, as you note, to the Governor in Council and the commission to play the regulatory roles that are set out in the bill.
If your question is whether there is a regulation-making role for Parliament in this bill, the answer is no. The bill does contemplate a review of the act every five years. That's an opportunity for Parliament to again consider whether the framework has had the desired impact and whether it needs to be modified.
That is the future role contemplated by this bill for Parliament. Of course, it's the prerogative of any Parliament at any time to review legislation, amend legislation or repeal legislation. There is nothing in this bill that takes away from a future Parliament.