Yes, that's another problem I have with awarding acting Oscars. In the last years it's enough to undergo a physical transformation (usually beautiful => ugly) or to play a real person to get the award. The supporting category has become a much more correct indication of actually acting prowess than the main acting category.
In all fairness, Glory was Denzel 2nd nomination, the 1st one was also in supporting and it was in an anti-apartheid movie about a slain black activist and in 1987 and we couldn't upset South Africa,could we? His biggest roles just came after that and he was overlooked because surprise, surprise, in 1993 it was Al Pacino's year to get his "consolation " Oscar for a
Who ever saw the
original of Scent of a Woman
knows what I'm talking about
In 2000 he wasn't even favorite, the favorite was Russel Crowe but he didn't get it because he won it the previous year
I personally loved his performance in Training Day, it was nice to see a black actor of such stature to play an evil to the core character like that. These days they are so PC, they are afraid they could be seen as racist or something.
I think his role in Flight was very good too, he lost to DDL but no one touched DDL that year because 1. acting of a real person and 2. well,
Another problem I have with acting Oscars: where are the awarding comedy roles? Poor Annette Benning, which is a very fine actress, loses twice to Hillary
Swank because she dies two gruesome deaths