They have been pushing to silence animal rights investigations for decades. Many of the modern techniques used against activists today originated from the crack down on animal rights groups

They have also been long pushing for laws called ag-gag laws to sensor reporting on what goes on inside animal agriculture. https://en.wikipedia.org/wiki/Ag-gag

They already rail against woke environmentalists and animals rights advocates. They're already there. These people are evil and always have been.

Also if you're legal, why do you care that drones look for evidence otherwise? There shouldn't be any.

The FAA only investigates aviation incidents. They're avtually a well run administration

I expect the outcome of this investigation will be that the pilot was in accordance with FAR part 107

The FAA is toothless when it comes to punishments. Their investigations generally are about whether or not to change regulations, and I wouldn't expect any regulation changes here. Strengthening drone pricacy protections would make it difficult for law enforcement to continue utilizing them

One regulation change we may see would be expanding the activities requiring a part 107 license. There is a whole lot of drone flight you can do without one, which makes the FAA entirely powerless to ever punish violations from uncertified pilots

More like gathering a set of barely plausible reasons why someone might not want an unauthorized drone in the airspace above their farm, so that they can push for reform that protects abusers.