My understanding is the upside is twofold. OP believes some members of the Court were exposed as being controlled by foreign influence. If true they could be designated unlawful enemy combatants.

Second, in the process of blocking the President’s use of IEEPA they laid out what they consider as legitimate avenues for levying tariffs, and even sanctions against foreign trading partners. Now, when POTUS cites these laws when levying tariffs, they will be nearly impossible to challenge.