As I recall, in 1990, and for many years around that time, there were billboards in Columbia advertising tickets so getting a $100,000 donation in any form AND selling some season tickets was a big deal.
Also, a part of this story being overlooked is that the ticketholder says the tickets have been in his family for 60 years. This is not a thing that started in 1990.
This is a very bad look for the university in my opinion. It leads me to believe that you cannot trust any contract or ticket purchase agreement the university gives you.