This is not a Constitutional issue. This is a purely legal decision based on a federal statute passed by Congress.

Constitutional issues are somewhat of a mix of the political and legal. SCOTUS tries to be apolitical, but by its nature it can override Congress on Constitutional matters, and therefore it's at least somewhat political.

But cases like this are legal. Political credit and blame for this decision should go to Congress, not SCOTUS.

Of course, those interested in the legal process itself may give credit or blame to the justices for their legal positions.