I definitely think there's a benefit to experiencing the conditions, no doubt. But as I've said elsewhere, there's also risk - you could lose in that SF. Whereas Wilson knew she had a medal wrapped up whatever happened, which is not nothing.
I also think the wind delays hugely influence things. Also, whilst Wilson was clearly the favourite, she won 8 out of 14 races in the series, so it wasn't like she was unbeatable.
Don't get me wrong, I'm as frustrated and disappointed for her as anyone. And I agree that there should be some tweaking done, and I'd have no problem with a more traditional format being used.