The ACCN broadcast 40 games per season and there are 90 total games among 15 teams. that's about 44% of games, meaning each team will feature in about 5 games on the network. But usually, the big matchups are on ESPN
If they can't reach big viewership on main ESPN channels then I doubt the ACC Network contributes much
Let me help you understand better.
Let's take BC.
In 2023, BC had 5 rated games, but one was on ABC vs. FSU, so the charts include 4 BC games.
In 2022, BC had 3 rated games, but one was against Clemson on ABC and 1 was on NBC/Peacock against ND. So, 2 rated games, one against Notre Dame.
In 2021, BC had 4 rated games.
In 2020, BC had 3 rated games, all on ABC, but 1 was against Clemson and 1 vs. Notre Dame, so 2 rated games including 1 against Notre Dame.
In 2019, BC had 1 rated game against Notre Dame on NBC.
So, in 5 years, BC had 16 games out of 60 rated (27%) and 13 rated games rated excluding Clemson and FSU including 2 against ND. Do you think that is representative of BC's overall TV ratings?
What about Syracuse? 20 games out of 59 rated (33.8%) and 15 games rated excluding Clemson and FSU including 2 against ND.
In other words, the graphs you displayed are cherry picked for many of the schools.