Actually it is even less meaningless in the NBA, Since the 1999 season, there have been 92 pushes in 5945 games, roughly a 1.5% chance of a push.
While in football there is a 2.5 to 3% chance of a push.
So your chances of getting a push in the NBA are almost half that of getting one in the NFL.
See, this is actually one spot where math might be helpful in handicapping. Again, it is all theory, and years vary from year to year. But knowing how much you make at one ine, and how much you make at another can tell you just how meaningful anything that is "free" is.