Wrong. Your house and tree are most certainly covered under FAA regulations. They just fall under the regulations that don't require you to directly interact with the FAA to build/plant them.
Just because they don't require you to get a permit for trivial things that are of no concern to them doesn't mean it isn't regulated. Build a 2000 foot antenna and watch what happens.
The person issuing your building permit is probably going to make sure you're following the FAA regulations though, of course you were too busy trying to be clever to think about the fact that you need a building permit for the house, weren't you?
The FAA requires buildings over various heights to be marked in various ways, including being posted on public aviation charts in some cases.
The FAA doesn't make me get a permit for my RC airplane, but they still regulate it, hence what this article is about.
Just because you are ignorant of the law doesn't mean there is no law, it just means you're ignorant.