Well, if the numbers in that college sports business link are to be trusted, you're flat out wrong, because if I read it right, schools like North Carolina, Florida State, NC State....and others have multiple millions tied up in this tier 3 mystery, that they no longer have their own rights to control.
You're misinterpreting the data. Lots of the claims on what Tier 3 is usually lumps in a whole littany of items including Tier 3 television rights and a whole bunch of other items like coaches shows, radio broadcasts, stadium advertising rights, website operation rights, and various other marketing & advertising related enterprises. The
only item in that list that the ACC is giving to ESPN is the television rights. Everything else remains in control of the schools and the schools do make money off it (for example - NC State just signed a deal for $5 million per year for this "other" stuff. This is the exact same "stuff" UConn is selling for $8 million a year through IMG)
As to your other question. You indicated the ACC is doing things wrong by granting Tier 3 rights to ESPN. Not sure I follow the logic. Just because its different does not mean its wrong. The total purchase price by ESPN factors in Tier 3 rights, so the ACC is getting paid for them. Just as any other conference is getting paid. In the Big 12, these rights are sold at an individual school level. That's great for a school like Texas, not so great for an Iowa State. In the Pac 12, they grant them not to ESPN but to their own Network. In the end, all conferences are getting paid for that Tier 3 content. The ACC sells it as a group. Technically so do the Big 10 and Pac 12, except they're selling them to their own networks. The Big 12 lets the schools sell them. Not sure the ACC is smarter (I would suspect no), but it's not exactly radically different either.