In 2011 Iowa State was national title worthy after beating Big 12 Conference Champion Oklahoma State.
And if it wasn't for oversaturation of bowl games, the best teams would go to bowls (assuming no conference ties to bowls). With over half of the teams qualifying for bowls now, it is just drawing the line of what level of suck can you sink to before you aren't bowl eligible.
Also, the "more practices" thing is a whole separate issue. That should be like basketball where you can practice up until the day of the championship game.
And after seeing Iowa State in Yankee Stadium, those bowl practices fixed exactly nothing.
Again... why do you care. Dont watch if you dont want to see it, the rest of us will enjoy more football. I personally wouldnt care if every team got a matchup in the postseason. I might not watch them all, but it doesnt hurt me if a 2-10 team is playing a 1-11 team.