I think the rationale is, if the Saints did in fact have a bounty program with the purpose of intentionally injuring other players (which they did), what else would they do? If they lied their asses off about that over the years, what else would they lie about now? Especially after they now see that the NFL is pretty serious about it? I don't know if the new accusation about the eavesdropping is true, but if it is? I don't know what else the NFL could do to the organization, but I'm sure they could figure out a punishment for that too. Compounded with the bounty scandal, it would be bad news. And if you're a Saints fan, you pray that whoever is pissed off at the organization is satisfied with how fucked the team is.
The new allegations would be worse than the Patriots scandal, imo. The Patriots were simply taping signals that were being signaled in. Which isn't anything to be taken lightly, especially with how long they were doing it. The other side to that is, we have no idea what was on those tapes. We don't know how bad it was. I guess only Goodell does. But the Saints were supposedly privy to actual communications between coaches. We're not talking just signals being signaled in that you would have to go back and watch what play was ran to match a signal with a play, or only cryptic messages. We're talking open communications between staff members of opposing coaching staffs. Real time game situation shit. Coaches talking strategy, what they might do 3 plays from now, situational things, etc.