From my reading and understanding, they still can, it just involves an _immense_ amount more paperwork. The ruling is basically that judges can only provide injunctions for the named party in a case, not universal injunctions. So instead of one injunction, each person impacted by the EO will have to file for their own injunction. Which will likely be granted due to similar injunctions already granted.

So it reads to me like we've ended up in a similar spot, but with the requirement that an insane amount of paperwork happens.