This tree absolutely does not grow into this shape naturally. Look at the trees in the background. It’s a lovely niwaki. The style is to shape the tree to mimic natural phenomena, which this does well, but it’s been shaped with artistic intent. This long, arched style is common for framing doorways.
That doesn’t mean he was “informing” on the right wing conspiracies. I will bet money that this is going to turn out like the January 6th informants, who were right wing nutjobs hired by the FBI to… “investigate antifa.”