Deserialized query params not available in model hooks

I’m just playing with query params new on canary and running into an issue where I want to use the de-serialized value of the params in the model hook, but obviously the controller hasn’t been wired up at this point.

In this case it’s a date, so the query param is a string representation and the controller handles turning this into a proper date / moment and if nothing is supplied we use today instead.

Here’s a gist of what I’m trying to do:

Is there a way of getting to the deserialized value in the model hook, or is there another way I should be expressing this?