[dogma1138]

From reading the full document it seems that the default TP-Link software allowed the routers to operate at higher power levels.

"TP-Link violated the Equipment Authorization and Marketing Rules by marketing routers in the United States that were shipped with TP-Link software that permitted the user to change the country code for the router, thereby enabling the router to operate at a higher power than allowed on certain restricted Wi-Fi channels."

This doesn't seem to have much to do with OSS/3rd party firmware support which is a whole other can of worms that the FCC opened a few months ago. This is also seem to be limited to 5ghz only where I guess the US has more restrictions.