Main point remains though: it's not something I've noticed from WSU (and I note from the thread you posted other people from there said it was no problem) so do different parts of the ground have different lighting? That seems rather strange to me.
It's always been apparent to me, as a fellow WSUer, that the East wing is 'gloomy'. Not so much that there's any difficulty identifying players or following the game, but it is dark over there.