So, the Supreme Court has cancelled the gas deal because future governments would be obligated to keep it and would have a difficult time altering parts of the deal.

Are governments no longer allowed to come to decisions? Every decision the government reaches obligates future governments. That has been so with various peace deal and treaties signed, with business deals and trade agreements signed, with laws passed, and with pretty much every other function fo government.

What is the point in holding elections and choosing a government if the government is not allowed to act because future governments will be obligated by such actions?