Benefits of class E resonant rectifier
After lots of searching I think I found a proper explanation. This paper introduced a new type class E resonant rectifier and provides the following explanation about the benefits relating to the switching of the diode: "The  diode-junction    capacitance is included  in the parallel capacitance and threrefore does not adversely  affect circuit operation at high operating frequencies. The diode turns on and off at low du/dt, yielding  low  switching  losses and low  switching  noise. Moreover, the absolute value of di/dt at turn-off is limited by an external circuit, significantly reducing the reverse-recovery effect."