The only reason I see the manual lock levers still being in vehicles is if you ever got into an accident and lost battery power. Other than that they don’t serve much purpose.
This would make sense if you could actually grab the knob. But, on my truck at least, there is no way to grab it because it sits basically flush with the door panel. There is nothing to grab onto.I've left my driver side door pull in place for this very reason but also because of where I sit. I am just forward of full back setting so my arm just misses the "door viper"