Last time I checked, the government, even as a "super conservator" or when acting within its legal powers, cannot violate the Constitution or breach contractual arrangements.
"The Constitution of the United States is the supreme law of the United States of America. This founding document, originally comprising seven articles, delineates the national frame of government."
The pessimism revealed here these days is the antithesis of the boundless optimism before the Scotus decision - when many were dreaming of quick riches. I saw the optimism at that time as a negative contra-indicator, and see the current pessimism as a positive contra-indicator.
Stocks usually go in a direction that most market participants don't expect.
However, the impending SPS-to-common conversion is indeed a cause for concern, and I think there is much less risk owning the JPS.