I hope that is true, Gelsey. Sometimes it takes the medical terminology a while to catch up with the way things actually are. I was diagnosed as a Type 1 in 1983 when I was 35 years old. It was easier to diagnose me correctly because I staggered into the ER in DKA barely able to walk and stay conscious - leaning on a friend for support. But for some other "older" Type 1's with a less obvious presentation, I'm sure there were lots of problems diagnosing them, which delayed them getting the proper treatment.
I know that some people still use the term "juvenile diabetes", even Bush 43 used it in his first inaugural speech (if I am remembering correctly) because he knew it was a term that many would sympathize with. Popular usage and current medical terminology are two different things. And as long as people get the correct treatment, it doesn't really matter.