The article is based on a study in Autism for which it doesn’t give a link, title, date, or authors. After searching that journal, I believe the source study is this: Non-autistic observers both detect and demonstrate the double empathy problem when evaluating interactions between autistic and non-autistic adults (Jones, D. R., Botha, M., Ackerman, R. A., King, K., & Sasson, N. J., Dec 2023).
It could also be this: Cheang, R. T., Skjevling, M., Blakemore, A. I., Kumari, V., & Puzzo, I. (2024). Do you feel me? Autism, empathic accuracy and the double empathy problem. Autism, 0(0). https://doi.org/10.1177/13623613241252320