I guess the hidden bit could be that you can have 10million members, i bet membership won't guarantee a ticket.
It's a 3 level membership system, so level 1 will have first choice and so on.
If your level 3 and level 1 and 2 members take the tickets first you have still paid your membership money but got no ticket.
The only way i can see this benefitting supporters only is if there is a cap on membership numbers to the capacity of the ground (home fans). Otherwise the club are taking money for games you can't attend.