Following the publication of the brief open letter to the Lancet Commission on the future of care and clinical research in autism, a longer response that provides more detail on the arguments by the global autistic committee is now available as a preprint. The text has been submitted to an academic journal, to be eventually published as a peer-reviewed article.
The preprint, titled Autistic perspectives on the future of clinical autism research, can be downloaded from PsyArXiv.