My 2015 Legacy needed a new windshield. Called around for quotes from glass places, but decided to follow the recommendations in the owners manual and get a factory windshield at the dealer.
The dealer ended up installing the same aftermarket windshield that was quoted to me from the glass shop, along with a hefty mark-up.
If the eye sight is that sensitive, you would think it wouldn't work with the slightest dirt, dust, snow, rain, etc. It takes quite a bit for the eye sight to shut off.
Next windshield, I am going to skip the middle man and get the same after market windshield installed at the glass shop.