daas, No hard feelings, but that IS aggada. You just admitted its not legalistic and is advice.
“It’s not literal in the sense that it’s a blanket issur, or that there aren’t factors to consider, but it’s a real preference based on what is typical for a talmid chochom.”
typical for a talmud chochom? In what generation? What constitues a talmid chochom? in what country is it typical? But you said it as a blanket statement and you dont know what other factors there are to consider and you dont know how that aggadic statement applies in our current generation living in the year 2016.