There has not been much in the news lately regarding the FCC fines regarding Wi-Fi specific equipment.
You may remember that just a few years ago, there was a flurry of big hotel and venue operators being fined for illegally interfering with customers Wi-Fi setups. Manufacturer's were also fined for selling over-powered routers, often caused by over-sized externally attached antennas.
Farther back, what I consider to be bogus claims by Austrailias CSIRO (with help from US agencies), severely dampened the market for outstanding companies like Buffalo. Up until that time, Buffalo had been a real shooting star in the Wi-Fi arena.
Now the FCC has gone after drone companies for unauthorized frequency use.
See the link below:
I would expect similar actions within the next couple of years in the Wi-Fi world, due to increased bandwidth demands across the frequency spectrum.