As a Cavs fan I've spent a lot of time looking at the standings recently and this season does seem unusual in that there are a lot of teams very close together - particularly in the West where 4-11 are only separated by a few games and the playoff spots aren't decided at all.
The only team who could get to 60 wins is Milwaukee - and that means they have to go 6 and 1 or better to finish the season.
The last time a single team didn't get to 60 wins (ignoring shortened seasons) was the Spurs in 00-01 (58-24) and before that you're back to 1979.
Don't really know what it means - is the average better so a team doesn't stand out as much? - but just thought it was interesting.