A rational human being, “Econ” in text book terminology is, by definition, calculating, unemotional, selfish and fully informed. On the other hand, people are “Humans”; their decisions and actions are driven by emotions, biases, judgements, and they are handicapped by both lack of full information and inability or disinclination to process even available information into their decisions.
It is also worth noting that financial institutions should gather a wide range of relevant information before they see market troubles brewing. In other words, scrambling for information once turbulence sets in is not good practice.