We all know that there will be times when the intermittent power sources like solar and wind are not going to function.   Solar produces no power at night nor when snow covered.   Wind doesn't always blow at the required speed to produce power.  Also turbine blades can freeze up, crack apart and whole towers fall over. Siemens in Germany has suffered huge financial losses from defective wind turbine equipment sold around the world.  This demonstrates poor reliability. 

Yet the needs for power to heat homes must be there to meet demands or people will die from the cold.  Recall that Texas had over 200 such deaths. Texas leads the nation with the most wind turbines, and was the first state having victims. 

Hospitals demands for power must be met as demanded.   When the wind's 10 % contribution is not blowing nor generating, society can't just figure they will allow deaths of any percent of citizens.  Nor can hospitals turn off the switches of their life saving machines, for 10% or any other percent.  Electrical demands are minute by minute and hour by hour, not measured by how much was produced during a given year.  

Plans to shut down fossil plants need to be revised so they're available on a stand by basis.  Many times there's reports of shutting down fossil plants, but no plans mentioned for maintaining the standby status.   

Thus its open to criticism as being morally and ethically flawed.  Again lives are at stake.   Blackouts are unsatisfactory

And I'd also feel sympathy for folks stranded in EV's when traveling in blizzards.  Also Kinda Dangerous.