Post-up play and mid-range shots still exist in the league, it's just that teams have realized that a mid-range shot is not the most efficient option, and bigs have taken a hint from the Europeans that entered the league in the '90s and 2000s and have stopped being 100% reliant on a post game (and it doesn't help matters that the AAU circuit doesn't teach fundamentals)....
The best offenses move the ball unselfishly, run intricate sets, utilize a diverse attack, and try to get the most efficient shots possible, as opposed to trying to force the same two types of plays that nostalgia gots like you think are the only valid ones
