There's one more [obvious] advantage.
Such an "Apollo style" Emergency Reentry
Vehicle can also be modified for deep-space [Lunar-Orbit; Lagrange points].
All you do is double the ablative heat-shielding; attach a "Service Module", and
voila!...You have a craft that can return
human beings to deep-space.
So such an "Apollo Style" ERV can
perform three different functions...
with modifications.
Jacob