Archera is not a Reseller or Distributor and doesn't rely on selling discounted EC2 RIs, which are the ones impacted by this change (e.g. ones acquired under volume discounts).
Since Archera is an insured commitment model (with actual insurance backing each commitment buy-back or utilization guarantee that you can read more on here), we have the ability to rebate customers for any underutilized commitment that can't be resold so the economics of any Guaranteed EC2 Standard RI remain the same to our customers regardless of resell-ability.
Additionally, Archera allows customers to buy and insure all commitment types not just EC2 Standard RIs so customers using Guaranteed Savings Plans, Convertible Reserved Instances or other instruments would not be affected.
Finally, Archera's insured commitment model allows us to provide customers who may have these non transact-able RIs in their account the ability to add insurance on to them & de-risk them being underutilized, even without the ability to resell in the AWS EC2 Standard RI Marketplace.