That's just being dishonest, did they have all those teams on the schedule in the same year? Because in the Big 12 hypothetical they would have Kansas, K State, I State and Mizzou all in the same year.
Go look at ND's schedules over the past decade. That schedule cannot even be approximated were ND to join the Big 12. And the service academies are not interchangeable, ND will always play Navy for historical reasons - if you do not understand that you do not understand Notre Dame football.
I think you are staying up too late and losing your mind:
I am not being dishonest, I just made a list of teams ND has played in the last five years and they are no better than ISU, KU, KSU and Mizzou. This season, ND is playing Wake Forest, South Florida, Maryland, and Boston College which are no better than the 4 B12 North opponents. I already mentioned that playing ISU, KU, KSU, Mizzou each season is not highly desirable by ND but that is a tradeoff for conference membership.
Not sure why you bring Navy up, I previously posted there was sufficient flexibility with ND's non-conference schedule to play them each year in addition to Air Force.
The Big East and Big 12 will likely not survive in a 4 team superconfernece model, the ACC will instead so ND's Big East affiliation will be toast for all of its sports except football.
That leaves ND with three future options:
1) Stay indy with future loss of scheduling flexibility as more conferences go to 9 game conference schedules and also run the risk of losing BCS access in case superconferences form. 1st Tier Network provider (currently NBC) only retain rights to home games. ND has no network control of entire road inventory.
2) The Big 12 - would provide sufficient scheduling flexibility to play the "must-haves" in USC, AFA, Navy and either Mich St or Purdue. Would provide at least one annual game in TX for recruiting purposes. Would have annual guaranteed game against UT or OU. Would provide potential/likely B12 championship game exposure at Cowboys Stadium (one more game in TX). Would provide ND with full 3rd Tier network flexibility. 1st Tier provider (likely ESPN/ABC starting in 2016) would have rights to all of ND's home inventory AND almost all of its road inventory which significantly enhances ND brand and $$$$ potential. B12 would permit current NBC contract to operate as-is for ND's home inventory through 2015. B12 membership by ND would insure the B12 surviving with only 12 teams.
3) ND does not join B12 - Big East and Big 12 both fold. ND loses BCS access staying as indy so forced into joining B10. ND loses scheduling flexibility with potential 9 game conference schedule. B10 would provide NO 3rd Tier network flexibility for ND. ND loses annual access to TX recruiting turf.
Looks to me the decision is clear for ND. Join the B12 now or run the real risk of being stuck with Option #3.