Autism exists as a spectrum, I think we cal all pretty much agree on that. The problem is that spectrum is, and always has been, seen as one of function. I see multiple spectra, and dimensions, laid across that fundamental spectrum of function. Two people at the same point on the function spectrum will be entirely different, yet considered and treated the same. Hence our saying "If you meet one person with autism, you've met one person with autism."
This tendency to measure us in one dimension does none of us benefit, an probably harms all of us. I was told by one counselor that because I was so cognitively high functioning and technically skilled, I did not need treatment of benefits. This was one of the things used by SSA to deny me benefits. Yet, I was unable to find long term work other tam menial labor or burger flipping. As the garbageman on Dilbert said, "High intelligence does not have as much practical application as you might expect."
The medical, psychiatric, and psychological professions need to recognize all of our dimensionality. For example, Asperger's has a set of well defined characteristics within the whole of autism, and needs to be kept as a separate grouping. The stated goal of the new DSM standards was to simplify things. Unfortunately, it appears they have simplified things to the point of uselessness.
I appear to have gotten into a bit of a rant here, but I believe these things need to be said, and repeated, until the people charges with helping us pay attention.