The skill level and athleticism has increased to the point that what were once considered insane, career defining layups/dunks are now routine. Some of the things we used to see once every 10 games we now see 10 times in a game.
6 made 3 ptrs in a game used to be memorable. Now it's Steph Curry having an off night.
When the average player, not the freaks but the average player can stare down at the rim on a dunk, the 10' rim height has become too low.
Imagine men's volleyball being played at the women's net height. That's what the NBA has become.
Yes, the analytics have dictated the demise of the midrange jumper, but it's not players taking 3s that has made the game boring. It's the fact that it all looks way too easy for these guys that makes it boring.