There is never a lack of leadership in any organization. What you are calling a "lack of leadership" is actually referring to "bad" leadership where individual parochial interests are pursued to the detriment of the organization as a whole. The NCAA has never really controlled the college football post season with regard to a national championship. The issue here is 5 power conferences, with separate TV revenue contracts (all with different expiration dates) and their first order of business will be the protection of their individual conference power. They will look at this proposal and immediately think about what is best for their conference. Will the Big Ten insist that the ACC and SEC go to 9 conference games, and stop playing FCS games in November? How will the Big Ten protect the Rose Bowl? Will the conferences scrap divisions to ensure that the "two best teams" play in their CCG (and basically put both in the playoffs if they are both highly ranked before the CCG. The playoff committee has always struggled with how to handle that "13th game")? How serious is the risk that 5 of the top rated 6 conference champions won't all be from the Power 5? And of course in all of this, how can the power 5 conferences each "manage their regular season schedules" to ensure maximum exposure to the playoffs? Is it better now to have competitive OOC games with games against teams from other P5 conferences (now that there are two pathways to the playoffs)?
Then...there's the money. ESPN has the total playoff contract for about 4 more years and this proposal might start earlier. ESPN is not going to give up what they are owed if the new playoff system goes out for bid. (And with 12 teams, it should). The revenue contracts with the B10, B12 and PAC12 are all up for renewal no later than 2025 (all with ESPN and FOX) and the new playoff system will impact all of them. The ND-NBC contract also ends with the 2025 season I believe.
The committee last week announced that this is going forward with further input from AD's, coaches, etc....and their "network partners". Now that this is a more structured playoff, will CBS (which just lost its SEC Game of the Week to ESPN) make a bid? Will NBC be more active with college football? Conversely, the expanded playoff adds one game post Jan. 1 (in the current proposal). All weekends in January belong to the NFL playoffs. That is why the current champ game is always on a Monday. Can there be two non Saturday games in January? What is the impact on the fan bases with all that travel?
So, yes, there absolutely will be an "excessive" amount of leadership at play here. But.. it may not be healthy.