A lot of what is being done or proposed is part of the typical knee-jerk reactions we often get when a famous person dies. You see it all the time. I may be cynical, but I think there are many examples. I'm not convinced Roy Halladay is a first ballot Hall of Famer if he doesn't die. I'm not convinced Heath Ledger wins Best Actor if he doesn't die.
Same thing here with Kobe. While his death is tragic and definitely far too soon, it doesn't mean people should be tripping over themselves to do things. What is Mark Cuban doing announcing such a ridiculous thing the day that Kobe dies?
I always try to view these things through the lens of: would you do these things if the person was still alive? If Kobe had lived a long life and died of old age, would the Mavericks or any other team ever retire his number? Probably not, so why would you do it just because he died young? Would there be calls to change the logo to Kobe if this hadn't had happened? I don't recall many people pushing that idea prior to today.
People need to take time to let horrible events sink in and give the families the space they need to heal, and then down the line find appropriate ways to honor the dead. Jumping to do things before a funeral is even held comes off more as an act of self-interest or self-promotion rather than real respect.