WoadBlue's article is older than appears, it was previously posted in this thread or another on this topic. Regardless, the SEC is clearly operating in its best interest in the immediate future.
The proposed alliance addresses several issues, the most important being academics. The SEC cannot perform as it has without substandard students. Further, analysis shows the concept that the SEC is actually any better than the remainder of the P5(4), aside from one or two elites at any time. See the ACC, B1G, and B12, the PAC has had a true elite the past few years.
The alliance is less about one super conference to block the SEC, rather it is the acknowledgement that CFB needs at least the majority of the P5(4) teams, more likely D1 (sans a few participants). Yet using their voting as a block to force the SEC back to it's true corporate mission of academics. Remember, sports is a small portion of a school's revenue. When one considers that the costs of running a first class Athletics department, the profits are not as significant as many believe.
Further, as a block, the remaining P5(4) can remind the SEC that not too many people outside of the Southeast actually care about SEC games. We may all watch a few interesting games but most people have a limited amount of time to watch CFB. They are not going to watch SEC sports because the SEC manages to squeeze out the rest of CFBdom.
As the B1G and PAC have a long history of working together and both value academics, the ACC is a natural fit to work with them in an alliance.
The ACC could align with the SEC, most of the schools have a near one-century history with each other going back to the southern conference days. ESPN owns both properties and the potential is there to work together. However, this does not address the SEC's dominance northern sourc of dominance, that is breaking rules (gray shifting) and using players who lack actual academic standing to compete.
Regardless regionalizing football to the SEC and the alliance is not likely to benefit anyone. More likely is that cooler heads prevail, major issues get worked out and CFB continues. The best outcome would be for the conferences to band together as the pro sport leagues do and work with multiple networks to ensure maximized revenue.