Also, any new officials will not be eligible for pensions, but rather will have 401(k) plans, and existing officials only have until 2016 to accrue service time towards their pensions. That last part means the NFLRA made a deal that helps its existing members, but gives a shitty hand to future members (not unlike the new MLB CBA).
My company recently did the same thing to all salaried employees (and we're managment and non-union). All new employees do not receive a pension, only 401(k) with 2% matching. Existing employees are still getting a pension, but they removed company match from our 401(k). Supposedly, this is "competitve" within our industry. I would honestly not be surprised if in a few years, they stop contributing to our pensions. I would be royally pissed if they actually took our pensions away (I don't know that they are legally able to do that).
I'm not saying its right, but it make sense why the officials would concede on that point.