analytics has taken over and it has produced the dunk or 3 pointer offenses we see now. In the 80's, the mantra was get the ball in the lane an shoot in close since every shot was worth 2 and (in theory) you shoot a higher % the closer you are to the hoop. Thus, 80s ball was all about shooting 15 feet and in. No big man ever wandered out and hoisted 25 foot jumpers (which is now the norm)
I saw a shot chart from a mid-90s NBA game recently. (Friend of mine played in the game so he saved it. Was his career high game) There were a ton of shots taken by both teams. Easily 50% or more were in the lane or just outside. 30- 40% were the so-called "midrange" and almost none were three pointers. I don't remember exactly, but believe there were fewer than 10 3s attempted all game. The three point line hasn't moved (I don't think) in the last 25 years, but the analytics gurus arrived in the early 2000s. Since their arrival, the NBA has become an unwatchable game of 5 guys on the three point line, one of whom gets an isolation and tries to drive for a dunk. If someone helps and slows him down he throws it out to one of his brethren on the line for a 3 point bomb. Lather rinse repeat. It's not basketball. It's a modified game of HORSE.
Sadly, college hoops almost always follows the NBA in terms of trends. The NBA stopped calling traveling in the 70s and the NCAA followed several years later. Ditto for three seconds, palming and other transgressions our children have never seen called in a game. The NBA outlawed two hands on an offensive player and the arm bar. Three or four year later, the NCAA does too. etc etc etc. So now, every NCAA coach thinks the key to success is take as many threes as possible.
Like all the other NBA fads / trends, I hope this passes and we get back to basketball before I'm 70. (Remember Laimbeer and the Bad Boys? That brand of ball was trendy for about 6 - 8 years, then it went away. So did other trends. Really hoping this one follows suit and is gone soon)