This seems to be specific to PA game laws and at least at a glance, seems like it might be entrapment by the game wardens.
This is nonsense. Entrapment requires that the accused would NOT have done the crime, even with easy access to means, without the actions of the police. This man runs and advertises a business to do exactly this crime. This cannot possibly entrapment.
Entrapment is when a cop says "if you don't cook this meth, I will kill your wife" so you cook meth. Entrapment is NOT "here's all this equipment and supplies to make some meth, and I will buy it from you at 2X market rate, and I know you need the money since your wife is dying from cancer and you can't afford treatment". If you cook the meth in that scenario, you were not entrapped. The philosophy is that you should not commit a crime no matter how convenient or beneficial to you it gets. Entrapment is not a "cops set me up" get out of jail free card.
Part 107 means you can apply for waivers with the FAA for specific activities. They almost never do for routine stuff because it would be a huge extra cost for them.
My town is in a no-fly zone. Almost every house for sale still gets a drone video overfly. I highly doubt the guy doing them is applying for waivers and getting them approved. It is too trivial of a justification to get an approval.
You can actually look up the waivers on the FAA website, there are orders of magnitude too few of them to explain all the flights that appear illegal.