This ruling, even though I disagree with it, only applies to CCW, not the general issue of carrying firearms outside the home. If a state forbids both open and concealed carry, then we have no 2A rights to bear arms.
The courts are rather hostile to the right to keep and bear arms. Scalia radically modified precedent when he issued the Heller ruling, and SCOTUS "allows" the Circuit Courts to issue anti-RKBA rulings. For example, the DC Circuit recently held that a ban on 10 round magazines is constitutional. The case was appealed to SCOTUS, SCOTUS declined to hear it. That case is referred to as "Heller II."
The 2A right is merely a contractual obligation between government and people. What it's based on still stands and will always stand: The inalienable God-given right to life, leading to the right to defend that life, even when, or as, that paper contract gets ripped into shreds.