I think if you see it as a complaint or not (I am not arguing whether he should do post it) probably depends on your filter (student or non-student etc).
I think the line might be playing a big part in it (esp after the losses).
It really is a challenging problemt to solve if you are trying to keep the students at the game and let them do what helps makes Hildont great, vs filling empty seats.
I do not think you can wait till 15 minutes prior to open up to the public because not many would draff out kids to wait and see. (I am guessing this would be targeted and sold similar to the corners.
The AD has tried overselling, it does seem to have helped but it only truely fills for a few key games, but is so often empty.
I do think something needs to be done on a latter, points system, ticket draw whatever to make the system work better. I do not know what would work so I leave that to those that might have better suggestions.
However, on the average of the empty seats perhaps a compromise (or trial for a year) is partial to season tickets or general public and hten release them to the students for open seats as the game starts.
For example, lets say the average amount of empy seats /game is 1,000, so as a compromise and say 500 are going to public this year (or even 250 whatever), and we will still let students set there as long as no one is in the seat at tip (but they might have to move).
Again, no easy answer, and this idea would have its own set of problems. It is just one concept.