Earlier quoted context omitted.
The executive branch is currently being gutted?
I'll give you one guess as to which branch of government most agencies belong to. Yes, agencies are being gutted.
Indeed the power and effective of agencies is being dramatically reduced. I believe this is the point that was trying to be made.
However, rulings like Trump v. United States vastly expand the power of the executive branch. Even if you're one of those people who believes in Unitary Executive Theory, prior to Trump v. United States, those powers were hypothetical. Hence the need for a ruling. It's to be seen whether a Unitary Executive would be more effective.