The DSM-5 is already outdated. Autism research has come a long way since people realized that Autism$peaks is a hate group dedicated to eugenics and the elimination of autistic people, and subsequently started supporting other organizations to further research and awareness.
Today, we understand a lot of things about the brain we didn’t understand even a couple of years ago. For one thing, no brain is well-ordered. The notion that we have an orderly mind is a fallacy. Our minds are chaotic places full of random thoughts and fragmented signals and the only reason anyone imagines that they think in an organized fashion is because their own nature is the standard that they have set for “orderly” or “normal.”
That’s something people have discussed for centuries, but now we are able to see how brains chemically function, and it’s a mess.
So, really, nothing is a disorder per se.
When the DSM-VI comes out, it will likely remove the term “disorder” from any diagnosis, as there is no expectation of order to begin with. “Divergence” might be a better term to use, because there is a standard pattern of neurological chaos, and many of the conditions outlined in the DSM indicate a deviance from that standard pattern.
The DSM-IV considered Asperger’s Syndrome and Autism separate things, and until 1973, homosexuality was considered a pathological disorder.
Essentially, if you’re going to play around with psychology, you need to be extremely flexible and open-minded about what you think you know, because our understanding of the mind and the human experience is constantly evolving, and the evolution of psychology happens rapidly.
Over the course of a couple of weeks, something as complex and demonized as schizophrenia could come to be understood as something completely different than we thought. It could change what we call schizophrenic people, how we treat them, and what society does to offer them support.
The same is true of any and all conditions.
Rigid thinking is for lawyers, not psychologists. It serves no one in this context.