I also think there's a reticence to specifically label Will as autistic for fear of encouraging negative connotations of ASC (he literally murders people and enjoys it); unfortunately there isn't a wealth of complex ASC characters/stories with positive representations to contrast https://twitter.com/Treacle_A/status/1299607510144421888

And I'm not necessarily too judgemental of the cast/creative team for not giving their fictional character a real life diagnosis in light of that. I am still free to interpret Will as autistic based on the show and will continue to do so regardless of what they say.

And I always take anything allistics say about autism with a pinch of salt because it's not their lived experience and even when they mean well they are often going from stereotypes and misinformation.