The gate capacitance Cge is designed to be large enough to avoid parasitic turn-on effects. This negates the need for additional gate capacitors. IGBT7 T7 is designed for zero voltage turn-off. Besides, the ratio of input capacitor is optimized to avoid parasitic turn-on. Gate driver circuit can be simplified, which means there is no need to use active miller clamping or shunt path for miller current. More details you can find here.