Don't know if an appeal has been filed or they are now broadcasting in defiance, but URadio is still running with no changes.
The station, licensed in Mexico, can run whatever is legal in that country. There is no defiance of anything if they are obeying the laws in that nation, over which the FCC has no say.
If they are producing the programming and not using the systems to deliver it to Mexico that require FCC approval, there is no way to impede those broadcasts. Or, as BigA suggests, they may not be doing the shows from the US at the moment.