I certainly didn't notice a decrease. Any loss in support due to making it members only was negated by the fact we were back in the top flight. For many matches last season the corner was fuller than the year before.
It was noticeable from where I was sitting (East Stand) looking up there, not the same numbers, at the beginning of every game a load of lads from the family enclosure would walk over and stand in that section.
The lesser games, particularly at the start of the season you could see empty seats that were never present the year before.
It was canny empty compared to previous seasons from where we sat...slap bang in the middle, ROW R, Seats 59 - 68.