Important points here:

It was because it's taken for granted if you describe autism well while it would face much social backlash if you don't describe it well

I gave much consideration whether we should portray the character as dramatically or realistically.

I thought autistic characters in existing movies and dramas have stereotyped autism. For example, they were painted as someone who needs help and had countless inconveniences. I believe a lot of those kinds of things were highlighted.

EXACTLY!

After much consideration, Professor Kim Byung Gun put great effort into showing different aspects of autism spectrum disorder, unlike the autism spectrum characteristics commonly depicted in artworks.

Professor Kim Byung Gun emphasized, "Change in social perspective is more important than institutional support (for autism spectrum disorder). We have to look at each other when we are approaching and we must have an understanding of what being 'different' is before anything else to make this possible."

AGAIN EXACTLY the whole point!

Read the original article here: https://www.allkpop.com/article/2022/07/the-reason-why-professor-kim-byung-gun-changed-his-mind-and-advised-extraordinary-attorney-woo