I guess stadia is the only platform that has to wait for a roster update, sports games on stadia seem like a PlayStation 3 oh well let's see how long for this update to come through, now I have learned don't buy any games full price on stadia because its a gamble finding out if you're going to get an update patch.
PS. thanks to the NBA 2k gamers trying hard on the 2k forums ! stadia gamers don't exist unless the game has over 50k players then maybe devs like 2k will care.