Yes.
As I'm sure you're aware, there are statutes and there are statutes. There's the French Language Services Act of Ontario, which one could have mentioned or not mentioned, as the case may be. Each province.... Alberta and Saskatchewan both have language acts enacted after the R v. Mercure case. There's legislation that could be mentioned.
The Charter of the French Language is a prominent piece of legislation in relation to Quebec—we all know that—but the fact that it's mentioned explicitly is neither here nor there.
You're right that the other three explicit mentions relate to constitutional provisions, but that's just part of the structure of the text. It does not take away the fact that, as Madam Boyer noted, the proposed section ends by saying, “including”.
It's all about co-operation with the provinces and territories. It's not about limiting services, and certainly not federal services. Those are governed by part IV of the act, not by this outreach part of the act, part VII.