My personal opinions about skaters change over time probably because of dying hoopla. Katarina Witt is my biggest example:
In the 80s when I was a teen, height of the Cold War, she stood between the good ole USA and OGMs, plus a few World titles. It was easy in my 'patriotic' mind to portray her as the sports villain. U.S. Coverage back in the 80s fed into the East v. West or us v. them more than it does now. But, when I watched the ESPN documentary several years ago on her skating career that included Jutta Mueller an Gaby Seyfert, it moved me because I had no idea how much pressure she was under at Calgary due to the deal Mueller struck w/ the GDR authorities: You can leave and make money in the West, BUT you have to win in Calgary. That is incredible pressure, a lot more than just skating in the Olympics against big competition. She won and I realized how much admiration I have for that.
Ironically, she was my 'love to hate' skater back in her competitive days, including her return in the 90s (how I wished Kiehlmann and her quirky programs w/ a 3F would have been the 2nd German lady in Lillehamer!) but not anymore and I can't say that she was a highly regarded skater that makes me go meh.
Opinions about who is overrated change for a variety of reasons, I suppose.