You make a good point, but on the flip side... I'm not sure Geno has ever had this much talented depth. I imagine we will hear about this all summer - "how will Geno be able to 'keep everyone happy' on the roster with PT"? My answer to that is twofold.
First, not sure he "has" to keep everyone happy. Every single player on the roster knows who is ahead of them age/class-wise. It's not like these kids were recruited in a vacuum. They knew about covid years, knew who was likely coming back, and know who was going pro. They also know that not only do they need to earn PT in practice, but that they will be GIVEN opportunities to play. So... players want PT? Earn it AND perform.
Caveat to that - freshman season, Yanna was given plenty of opportunities to play, and she fumbled. This year, Ice was given plenty of opportunities to play, and early on, she fumbled. Wasn't until Liya was out with the injury that Ice suddenly blossomed.
My point about that is... if players can't perform well when coming off the bench, they will simply have to wait longer, or wait for an injury opportunity. But if they don't play well on the court, there is a plethora of depth to turn to.
Second, I don't believe Geno has left any players on the bench who could have helped in bigger games. And I don't think he will next year. If that means all our starters "only" average 20 MPG because there is so much quality depth, then that's what will happen. I could see us playing entire 4th quarters with no starters at all on the floor. And I hope they full court press for entire games. 40 minutes of hell. In total blowouts, maybe call the press off, but it's not fair for players off the bench to be told "go easy on them".
It will be uncharted territory since, as you said, abundance of riches. I am hopeful it is waves of play, tons of energy, and tough defense. I know it will take the freshmen time to catch on, but with so many options, I hope that we see at least 10-12 players average double digit minutes...