What you reference is clearly a PR campaign from Neuralink in response to:
"In a lengthy complaint filed with the US Department of Agriculture (USDA), Physicians Committee for Responsible Medicine (PCRM) said the research caused “extreme suffering” in its test subjects, who “had their brains mutilated in shoddy experiments and were left to suffer and die”..."PCRM obtained hundreds of pages of health records, necropsy reports and other documents related to the $1.4m partnership through California’s open records laws. It said the documents reveal the monkeys suffered “extreme psychological distress” from the “crude surgeries”
https://www.google.com/amp/s/amp.theguardian.com/world/2022/...