Teams literally have a wide open 3 every other possession. How are the schemes better?
Are you counting 30 foot shots?
There's no era in NBA history where you can put five shooters on the court and not get open threes. What defenses strive to do is limit those as much as possible, ensure the window is as short as possible, and that the players who do get open are the ones you want shooting. You wouldn't have so many players launching from 30 if 23 foot shots were easy to get.
As opposed to the 80s/90s, when open threes were just as common even though there were only 2-3 shooters on the court at any time and they were only a threat from 22-23 feet. NBA literally had to move the 3pt line in cause open shooters were missing from 23.
You could see even great players like prime Jordan getting left open over and over again, even in critical games.