Having started out Buddhism from Zen Buddhism (and now with a bit of Theravada) I cannot fathom what drives some monks to think they can run a bar and still think they can still call themselves Buddhist monks. It wasn’t mentioned which sect these monks belong to but my guess is that they are from the Jodo Shin sect.
I am not against Jodo Shin sect at all but rather misinterpretations by people of what its original founders had intended. Like all societies and their religions there will be radical offshoots. Is it okay to start a prostitution house just because you have a sympathetic ear?
A line has to be drawn somewhere and it has to be drawn with common sense even though common sense can be problematic at times.