Hybrids have much more efficient ICE motors, which generate less CO2 than the motors of traditional cars. The amount of CO2 is further reduced by energy recovery.

TFA links another page where it is explained how the ICE motors used in Nissan hybrids have surpassed 50% efficiency, which is an efficiency that in the past was reached only in huge 2-stroke Diesel engines for ships.

50% is already not much lower than the efficiency of the gas turbines used in electricity generation plants, but the power plants with combined cycle (gas turbines + steam turbines) may reach over 65% efficiency and the power plants with Combined Heat and Power may reach over 80% total efficiency.

Battery EVs may take advantage of continuous improvements in the energy generation infrastructure, but for now they are still not usable everywhere, so hybrids are still preferable to cars with pure ICEs.