That's right. One way to deal with my concern would be to say these are all aspects of reasonableness and we have a list of factors. Certainly Canadian courts are no stranger to long, non-exhaustive lists of factors in guiding the application of a legal concept. That's certainly something we're quite familiar with.
My concern is that I would prefer to see the concepts of necessity and proportionality highlighted and the other factors subordinated to them, rather than it all just being put into the question of reasonableness.