More on kidney exchange chains initiated by deceased donors

Earlier I noted that there is a new UNOS proposal: Allowing Deceased Donor-Initiated Kidney Paired Donation (KPD) Chains out for public comment.  Now there are a bunch of comments, ranging from supportive to concerned to confused: 
https://optn.transplant.hrsa.gov/governance/public-comment/deceased-donor-initiated-kpd-chains/