I mean there needed to be a rule that SCOTUS couldn’t grant immunity to lawsuits or exempt the government from lawsuits.

One obvious sign the constitution was not designed with much thought is that the Supreme Court and the Electoral College are both examples of what people in the 1700s thought would create apolitical processes with diametrically opposing theories (permanent = apolitical, temporary = apolitical) and the electoral college is definitely more successful so far in achieving its stated goals.