How would it be a logistical nightmare? If they reserved the season ticket seats for say, 5 days, a week, whatever, then that doesn't stop tickets being sold for all other seats. That way, no season ticket holders can get tickets season ticket holders can get the seat the usually sit in. Hardly 'unworkable' is it?
That's daft, see my first point.
That would be fine if season tickets had allocated 'general areas' and not seats.