Typically corn needs be planted in soil that's not too wet. You have to wait for the low laying portions of your land to dry out. It doesn't play catch up a well as other crops in terms of yield.
If it gets pushed back too far you'll see a lot of folks switch to other crops for the year, such as soybeans that are better at tolerating a shorter growing season.
That said, I assume that nobody I know would have been stopped by this. They'd just grumble about new technology and use the steering wheel.
