That's true, except they have been enforcing and building the capabilities to enforce at a larger scale. They can enforce going back decades, are called in constantly to help other investigations and prosecutions, and are in no rush.

It's just like everything else, literally, and tax evasions only get media coverage under pretty limited circumstances.

Taxation in the space has always had a foregone conclusion that some have chosen to handwave or rationalize away. Not a bright strategy IMO.