The nuance is that nothing Congress passed granted to right to tax. Additionally, they did grant the power to partially block imports. Nothing says you have to enact “no imports from Japan” vs. “no imports of networking equipment from Lichtenstein.”
The precise wording is regulate. The idea that "regulate" means you can turn it on or off with no in-between is beyond parody. Absurd. Hilarious. Farcical.
That said the headline is misleading and should be renamed, nothing is changing from this ruling.
"investigate, block during the pendency of an investigation, regulate, direct and compel, nullify, void, prevent or prohibit..."
I'm sure they are lol.