According to the NBA league and its apparel associates:

The league has given many props to hometowns with their uniforms in more creative and artistic fashion in the past, leaving these uniforms lacking a certain flair that’s come to be expected of the all-star season.

The game itself will have to carry the weight of the more exciting nature of the all-star weekend break instead, but still the release of these uniforms plays a unique role in defining the success and branding of all-stars this season.