I've never seen or heard of that.

The reason the public draws a weak correlation between savants & autists is that an autist needs to be highly talented for people to be willing to put up with their bullshit.

Same thing with black guys in college. Since most black guys in college are only getting in because of basketball & football, a lot of white college kids just start to assume that all black dudes are tall & athletic. It's a perception bias based on only being exposed to a non-representative sample.