I don't know if there is some limitation to the way they place the numbers in unique setups like this, or if there just aren't enough Suns fans to complain and give them reason to change it, but 2K has made the Suns' front numbers way too small every year (I believe) since the new jerseys came out.
And aside from the number just being way too small compared to the rest of the design, the full front design is just too small and looks very dull compared to the real thing.