I think we need to consider the speed with which we can talk today compared to even 15-20 years ago. If you listen to the AIP guys, they constantly talk about the fact that everyone in SV is on a phone thread with everyone else talking about things in real time. Combine with Twitter/Media, and contagion can spread exponentially.
Still, I agree if ANY sort of talking will cause your bank to fail, it's a problem with the bank (consistent with your initial post, Jason).