That's a very good question. There may be aspects to the answer, but the general answer is that many of those independent organizations regulate government. I'll give you a different example.
The Canadian Human Rights Commission—also an independent agency—has regulatory powers. The Canadian Human Rights Act applies to the Government of Canada, and so they are left at arm's length. For the executive branch to tell that independent agency how to behave.... In the Westminster tradition, it is kept quite separate and at arm's length.
I can say that there is a small number of regulations out of scope—overall 14%, so fewer than 300 regulatory packages since 2012.