First, there's no court order for Safari. This isn't the court saying "everyone always has to preserve data" it's a court saying "in the interest of this litiga

First, there's no court order for Safari. This isn't the court saying "everyone always has to preserve data" it's a court saying "in the interest of this litigation this specific party has to preserve data for now". But moreover, Safari isn't a third party, it's a tool you are using whose data is in your possession. That means that in the US things like fourth amendment rights are much stronger. A blanket order requiring that Safari preserve everyone's browsing history would be an illegal general warrant (in the US).