Should a windshield crack from the cold!? 2 questions

You hear an impact. Glass doesn’t ‘twack’ when it breaks from thermal stress. It would have been a ‘tink’.

Also, there is nothing wrong with Safelite glass. It will not reduce the value of the car. All Subaru glass will get you is a lighter wallet to pay for dealer mark-up, then added delivery to the shop. As stated, they don’t make glass. They also do not replace it. They outsource that work. Probably to the Safelite people.