Who cares if anyone tunes into the GL. What players want is to start their pro career and get paid. They aren't going to college so they can be on TV. Zion had a huge online following just from HS highlight videos. The GL continues to increase their pay and Silver just stated he is going to work with the commissioner on making the GL a more attractive option for kids coming out of HS. He wants it to be a legit developmental league and option for kids who have graduated HS. You see more and more kids talking about how college is a joke in how the rules work, probably because guys like Lebron and other major figures have spoken out against it. They are only going to college because they have to and the college game benefits from it. Zion drove up ratings for college basketball this year. College basketball just isn't as good if they aren't getting top talent. Will some still watch? yeah, but it won't be the money maker it is now. Again, this is why there is talk of changing image/likeness rules for NCAA. They realize they need to keep players from going to other leagues.
Just look at two ISU players. Wigginton and THT. Now they wouldn't have gotten drafted out of HS, but clearly they were looking to turn pro as fast as they could. If they have a legit option to go play in the GL or Australia or wherever for a year and get paid, it seems like they would have considered it. I think Hampton expressed the sentiment of a lot of highly ranked recruits when he said his dream has never been to play college basketball, his dream is to be a pro.
I understand why they do it and I think that's a reasonable choice. What I'm saying is this isn't going to have a big impact on college basketball as a business. On one hand you're saying who cares if no one watches the G-league, but if no one cares about the G-league, it's pretty tough to pay the players big dollars or attract sponsors for endorsements. Most likely the one year out of HS requirement is going to be gone again. The guys that matter to CBB and can possibly garner interest in the G-league are going to be in the NBA anyway. So, without the one year requirement you've got:
1. The former one and dones going to the NBA anyway
2. A handful of guys not good enough to go straight to the NBA that decide to just go to the G-league
3. A handful of guys not good enough to go straight to the NBA that decide they are better off trying to position themselves for the NBA and build something of a brand in college.
Again - once this reaches a steady state the number of guys in category #2 isn't going to be that many, and college basketball isn't going to suffer because a few straight to G-league level guys don't go to college. There are only so many spots to fill, so it's not like the top 100 HS kids can all go to the NBA/G-league every year.
In the 80s - early 90s the CBA was very similar to the G-league. In those days there was very little opportunity to get feedback, so lots of delusional guys declared out of HS, declared early, and ended up in the CBA. Lots made it to the NBA, most didn't at any impactful level. It really had no impact on college basketball interest or viewership.