Constitutional Reform and Governance Bill

In the consultation and the Government paper on the governance of Britain, one recommendation was to put the Ponsonby proposals on a formal basis. That would have included the Government explanatory memorandum, which provides information about the contents of the treaty along with the Government's view of the benefits and burdens of the treaty. If that was what was originally envisaged, why is it not reflected in the Bill? Is this not another example of the original proposals being short-changed by this Bill?