I'm using the UBR mod, and I can't help but notice a big difference when it comes to jersey's:
2K version: https://i.imgur.com/O0Bdjo8.jpg

Real life counterpart: https://i.imgur.com/Me0pfq8.jpg

As you can see, the East wore their players home jersey's, while the west wore their away jersey's, ofcourse, there were other all star games where players wore their own jersey's,
but this is just an example
on a different sidenote, the NBA on NBC scoreboard is also different, 2K just lists the teams as 2001 vs 2001, while in real life it was East vs West, although I'm not sure how one would be able to fix that
Also the courts are different for some reason