That depends on who you talk to! Some would consider 28-23-6 to be sub-.500.
The goal isn't to be just over .500 it is to be as over .500 as possible and 6 in 15 isn't going to help very much!!
If I remember correctly, there were about 200 overtime games last season, which means there were 200 games that count as wins, but not losses, and that means 0.500 doesn't quite mean what it did anymore.
Look at the standings - I'd be surprised if more than 6 or 7 teams are actually below .500.