Then what's it about?

An entire paragraph of a UFO story by "K" is devoted to planting trees, which is totally pointless. And before that, he gives his entire work history, which also turns out to be irrelevant. The punchline is the last sentence of this paragraph.

"Christmas vacation was two weeks of time out of school that I could use to fatten the old wallet so to speak. I hooked up with some other Doverites that did contract work for the forest service planting pine seedlings in some clear-cut areas. Work started at daylight, and ended at dark since the days were short. We got paid by the acre. You carried a tool with you called a "bar" shaped kinda like a pogo stick except instead of a spring and a rubber cap on the end of the handle, there was a sharp spade-like blade of thick steel and a steel extension coming off one side to use your foot to help stab the blade into the ground. Stab the blade into the ground, push the bar forward to open a 8" deep hole, place the seedling in the ground (being careful not to J-root them) and then stomp with your boot to seal the hole. Step forward 5 steps and repeat the process. That is what planting pines is all about. But this story isn't about planting pine trees, even though right now it probably seems like it."