Specific to this situation you may be right, but generically the idea of making coal-fired power plants emit less CO2 is not a bad idea, mostly because there's

Specific to this situation you may be right, but generically the idea of making coal-fired power plants emit less CO2 is not a bad idea, mostly because there's not a feasible way to turn off all such power plants tomorrow, so given that they need to continue to operate for some time, therefore it is helpful to figure out how to minimize their negative impact.