I think the $89 price is to discourage giving out free wireforms to anyone that asks weather they need it or not.
Personally mine works 100%. If I find that I want the new one, I will pay for it as I'm one of the ones that dont need it.
The re-designed wireform does not have a double loop at the bottom to catch and drop the ball.
Balls can still skate off towards the sling plastic and drain, or roll up the loop. It will still need a bit of tweaking to make it closer to 100% reliable.
It mostly only addresses the ball hang issue.