You're right; they have addressed one of the biggest complaints in terms of adding/revamping/fleshing out modes. But that doesn't mean they address
my issues with the game. Like I said above, I wasn't satisfied enough with 2k14's gameplay and AI on the court to justify a purchase of 2k15 without seeing firsthand what has been changed.
I never said I expected perfection. And I don't expect every single issue I had to be fixed, especially in a single cycle. But, with the lack of information, I can't help but be cautious. Hopefully they prove me wrong and some of the major issues I had last year will be fixed, but until I am able to see it for myself, I can't make an informed decision.
Again, I never said they did nothing. But, until I see otherwise, it still lies within the realm of possibility that major issues I (personally) had went unaddressed. They've released a bunch of news on modes and features, which is great. But why can't the same amount of information be released for the area where I would be spending 90% of my time with the game?
No one has to tell me that anything has been addressed. But if they are not going to come out with information on what has been worked in directly, then that's where a demo would suffice, so that I can see the changes for myself. But, I have a hard time making a purchase on blind faith.