So then what you're saying is that the organizations that keep camps along the river are the ones at fault and should be sued. If they placed their guests in a known dangerous situation they should take the blame.
My dad grew up in a WV 'holler'. They had major floods probably at least on par with the Guadalupe and, yes, people died. They probably still do.
I don't remember him ever telling me they blamed it on NOAA or the NWS.
I heard there were around 700 souls at the camp. They should have had an evacuation plan with the history of flooding there (with fatalities, no less). Would it have made a difference? Don’t know.