In my own experience on the west coast, we had a national marine conservation area proposed for the southern Strait of Georgia. It's been more than 14 years, and we still don't have it even near a stage of the process whereby I would anticipate we're going to see it in the next five years.
The Gwaii Haanas area took 20 years. The sponge reefs took 14 years. In other processes we've been in that took us eight years, we actually didn't get outcomes because the process was shut down.
If you look at the goal, and the scale of area we're talking about protecting, and the historical timelines it's taken us to get through the work, I can only conclude that we have to accelerate the engagement process and the interagency function to realize the intended outcome.