Every year, NBA is always arranging a big match-up every Christmas Day. That alone is the reason why Lebron James also has a record of having big games during Christmas day because he's always part of it.
Instead of Phoenix Suns vs Milwaukee Bucks, NBA still chooses the popularity of the Nets and Lakers players.
Not a big issue but at least teams in the previous finals should always have a rematch during Christmas Day as it was supposed to be like the Cavaliers vs Warriors saga before.
Perhaps its because of the big hype around Lakers and the Nets, that's why the NBA decided to step aside the Bucks vs Suns match. We all know that NBA is a business, they have to push for the biggest spectacle.
At least as fans, its going to be big this Christmas day, watching the games with your families and having some fun.