This was a cop out decision by the SCOTUS. They just kicked the can down the road - Kennedy himself said as much saying that other cases might have different outcomes. The SCOTUS slapped the hands of the Colorado commission for their bullying ways against Mr. Phillips.
I think Kennedy or Ginsburg has to go before this issue really becomes decided.
Does the court's statements in the Masterpiece opinion regarding religious bias foreshadow the result in the Trump Travel Ban case, where the challengers are arguing that various statements by candidate Trump or President Trump show that the restrictions on travel from certain countries were motivated by religious hostility?