a constitution should not be a complete rulebook of all law. but an essential baseline of minimum standard expectation.
EG. not a right to freedom. as that automatically makes prisons illegal, thus making crime non-punishable.
but a right to breath, talk, walk. is an acceptable minimum..(you can still breathe, walk and talk in prison)
Is it really necessary to have a constitution to tell people that they have the right to breathe, walk and talk? Breathing isn't really a right either because it's impossible to live without it, it's a necessity. Even that isn't protected by a constitution given that the death penalty exists.
Either way that's too much on the political stand and I understand the point you were trying to make, it's that there should be some basic guidelines in place for the development, implementation etc without there being anything that is too set in stone that it is not adaptable to the current situation.