Although I understand the desire to combine ConsentDirective and Contract into one Resource; I don't think that it meets the desired goal of FHIR of simplicity and implemtable. I recommend that ConsentDirective be promoted to a Resource. It can continue to look much like Contract, looking like other resources is comment in FHIR.

I have found in discussions that people are expecting ConsentDirective to be a resource, and find it hard to find it within Contract. They do not understand why they should see this as obvious.

I have found in discussions with people that they have negative impressions of a Consent Directive when it is put into terms of a Contract. Even though they will admit that it really is a form of contract.