You could be right they could go away in the future but while they are the current way of determining the conference champion they matter.
I have got the perfect solution to make all CCGs matter. Top 4 in each of the 4 conferences have a 4 team playoff. ND can somehow be seeded within the ACC's playoff. Using this season's results:
Current CCG Weekend:
B10: (4) Indiana at (1) Oregon; (3) Ohio St at (2) Penn St
SEC: (4) Texas A&M at (1) Texas; (3) Alabama at (2) Georgia
ACC: (4) Miami FL at (1) Notre Dame; (3) Clemson at (2) SMU
B12: (4) Colorado at (1) Arizona St; (3) BYU at (2) ISU
Two weeks later => CCGs at existing CCG venues. Sankey's SEC CCG remains iconic.
NYD: Two semi-final games at Bowl venues
National championship =>10 days later
Fox now gets a cut of the 16 team playoff with B10 and B12 games. Regular season conference games still maintain huge value. More money for everyone.
Only thing the CFP Committee does is seed the four conference winners. No selection involved except in the case of ND.
G5 can have a separate playoff which has been long overdue. Can be subsidized by P4 playoff.
Even the B10 fanboys can be in favor of this.