I'm not a reviewer, but as a mission maker i can tell you
that if a reviewer wouldn't have tried out both variants,
he couldn't be able to give a complete review.
To play not as leader off course only makes sense, if AI
leader is supported by the map maker (wayopints).
Not rarely, people makin missions, where even several scripts,
variables or other stuff ("_x moveincargo xxx" foreach units group), won't work, when disabling certain units in player