Kao Yuen split

This bio says he retired in the mid-1980s.
http://www.hkmdb.com/db/people/bio.mhtm ... ay_set=eng
So shouldn't the roles for the 1990s be split off ? They both appear to be Mainland productions.
http://www.hkmdb.com/db/people/bio.mhtm ... ay_set=eng
So shouldn't the roles for the 1990s be split off ? They both appear to be Mainland productions.