I think that is a good read. ND isn't going to any conference. With the 12-team playoff all but a done deal why would they? In the Big or SEC, they will be a middle of the Pac and most likely never make the playoffs. Staying independent in football and playing the ACC for 5 games is perfect for them. NBC or one of the big streaming giants will pay them plenty of money so in my opinion they stay independent.
The GOR and ESPN will not allow the SEC to poach NC or any other ACC schools because it makes zero economic sense. ESPN has an amazing deal with the ACC, and they know it. What they will do is to strengthen the ACC by adding or putting a deal together with the PAC schools. This provides ESPN with great content, adds some money to the ACC and they get their cake without losing a major asset.
The only way this doesn't happen is if the PAC decides to add a few teams and stick it out as a conference.