Are you talking about the waste of money spent on leasing the stadium, or just on the mechitza? I’ll tell you what is unnecesary, and that is spending millions on a one night get together. Does that bother you too? Maybe everyone should give the money they would spend on tickets to tzeddaka instead.
If you are going to have the siyyum in the stadium, then putting up the mechitza is a wise business move on the part of Agudah, because it broadens the specrum of ticket buyers. Without a mechitza, many RW communities would not participate and you would have empty seats.
Feif, I won’t call you a troll, but since you obviously xould have thought this out for yourself I will say you are looking to make trouble.