I'm not sure where there is evidence of a political agenda. There is clearly evidence of some misconduct on either the part of Gibson or their importer, with materials "accidentally" shipped in mislabeled containers.
I would assume a company the size of Gibson 1. knows the law, and 2. hires professionals to handle their import/export. I work for a much smaller company who hires people with zero experience and trains them on US Customs as well as some international regulations, and the one thing that is stressed is that anything that is mislabeled or not properly declared will be seized. Everyone knows this. Gibson definitely knows this.
Further, if the items in question (in this case, wood) are later proven to be legal, they will be returned. This happens pretty frequently. I often have a container that FDA or ICE transfers to a bonded warehouse while some paperwork is sorted through. The whole process usually takes a week to ten days, but can stretch on for months if there are questions regarding the paperwork.
If the importer cannot prove the items are legal, they will never get them back. In my experience, the onus for providing the required documents is on the overseas exporter. When one of my exporters cannot provide proper docs, the shipment is returned to them and they eat all of the freight (though this will depend on the Incoterms the shipment was transferred other, basically whether or not Gibson legally took possession of the goods in India or when they arrived in the US).
All of that said, simply being unable to provide adequate documentation is not usually enough to lead to criminal charges- it just results in the forfeiture of the shipment. That Gibson hasn't received their goods back (or been allowed to return them to their supplier) leads me to believe that criminal charges are likely, though I could be wrong. It is very difficult to prove someone intentionally mislead when filling out their forms versus just making a mistake.
I also think it is interesting that Gibson's response has not been through the courts, but through the legislature. If they believe the law needs to be changed, doesn't that kind of make you think they know they broke the law? Whether or not the law as written is just is irrelevant.