How many drivers of $150k cars die after driving into floodwaters? It costs nothing to turn around and not drive through a flood.
In this context, the advice "Turn Around Don't Drown®" seems correct.
Though perhaps the BYD solution could be more effective for dumb drivers (which, according to CDC, seem abundant).
Sometimes it may be the least bad option, floods can get pretty wild and extensive. Maybe someone travels around in deltas commonly and like the extra safety?