So basically, Congress is going to have to pass more updates to previous laws to reflect what the regulatory agencies need or want. Basically, fix the bugs in the core legislation instead of patching it downstream.
With Chevron deference struck down; it's now possible to even get an Agency's administrative law sanity checked by the Courts.
No, which is why we want the people previously free to make top-down decisions, i.e. executive-branch agencies, to be subject to judicial oversight when attempting to read new powers for themselves into the law. Doing away with Chevron restores that oversight.