Don't forget the repeal of the chevron deference too by the supreme court. Agencies have a lot less power now (at least from a judicial perspective). Big trouble indeed, but its clear that for certain actors, they are experiencing pain they haven't felt before under any administration...

As I understand it, this means that many regulations (CFR) are much easier to repeal now than to re-enact; it will take an act of Congress to restore executive power that is thus relinquished. But I don't have a very clear idea of why I think this, so maybe I'm misremembering...

Yes, it saddens me to see one of the three branches almost capitulate to another. If there's gonna be any in-fighting, let it be amongst the branches.