The playoff system is an example where everything scales.
Prior to the BCS, you didn't have championship games. You just had bowls and polling picked the National Champions at the end of the season.
Then they introduced the BCS, which solved what most people wanted "We want to actually see the top two teams play". It introduced the issue, however, where we don't get to see the teams that missed the cut, through whatever reasons, even given the chance to compete.
So the CFP is introduced. It has all the same issues that the BCS had, but now we have 4 teams instead of 2.
So we introduce the 8 team playoff, and it doesn't solve any of the issues.
So we introduce a 16 team playoff, and it doesn't solve any of the issues.
So we intro...
In the end, what are we trying to accomplish?