There are all kinds of issues that go beyond the amendments proposed here and that are relevant to the operation of the federal environmental assessment process, including the one you're raising, the interaction between the federal and provincial processes. They have been, and still are, the subject of numerous discussions.
There was a meeting of the Canadian Council of Ministers of the Environment last October, at which all the ministers agreed to take advantage of the next parliamentary review of the Canadian Environmental Assessment Act—that's a legal requirement and it is to start soon—to consider these models for collaboration and cooperation at the federal and provincial levels. The kind of approach you're suggesting will clearly be discussed in that context.