Loading ferries post fireworks is almost as bad a waiting for the monorail. It always resulted in extensive lines and frustrations. With the new evening shows, this would be a quicker way to get people on the boat and lower dispatch times.
I don't expect any changes on the other side at the TTC because unloading is always faster than loading. It also looks as if, it's only going to be done at one ferry slip, since the other slip doesn't look like it can accommodate it as easily due to its location and angle.