One thing, though, and it's the most ironic part of this situation, is that if the NFL strips DirecTV of exclusivity of Sunday Ticket, it would probably ease a lot of the concerns regarding the NFL's anti-trust exemption, which has been used by legislators in the past against the NFL for doing such deals in regards to their exemption.
The only reason the Sunday Ticket exclusivity has been an "issue" for legislators is mainly due to Arlen Spector, who was mainly concerned with the NFL Network. Why? Because Cablevision is based in his home state (PA) and its owners have donated millions of dollars to him over the years. They weren't able to reach a deal to carry the NFL Network, and I believe still haven't, so they used Specter as a proxy to attack the NFL.
There's really no reason the NFL shouldn't give up that exemption, as the only purpose it serves today is to shield the NFL from taxes. The MLB gave up their exemption voluntarily a few years ago, and reported it was revenue neutral - as you'd think the NFL's would be, since it passes through all the revenue to the 32 teams and keeps just enough to pay for its offices and salaries. They might have to keep a few million more if they ended up owning a bit of taxes, but it isn't like they'd be paying taxes on all those billions washing through.