Yes, but it would be a terrible precedent if a Minister of Justice were called to defend charter statements, in part because they are apolitically drafted, and in part because, as you have identified in your question, they aren't meant to be a legal opinion. There are going to be different legal opinions out there, and you, as a committee, you, as individuals, parties and other people for or against the proposed legislation can get access to legal opinions and go precisely into detail.
The charter statement isn't meant to do that; the charter statement is a framework document that is meant to show that the government is attuned to the fact that there is a charter and that proposed legislation needs to conform to that charter. Therefore, it forces the minister in charge of the bill, we, as the Department of Justice, and the Minister of Justice to take all of that into account.
If you wish to go through a more specific analysis of the various articles of the bill that are in question, I would turn the question over to my officials. I did identify the changes that were brought about that were considered in the explanatory document subsequently, and, again, the conclusion is that they fall within the original framework of the analysis that was done on the charter statement.