The angle the video was shot from could easily hide the actual extent of the garden. He seems to have ignored the big open area and decided to land and take off as close to the house as possible..
I’ve seen nothing to show that his impact area was either his approach or departure point; it’s quite conceivable that he could have approached to the open paddock then taxied in to the shut down spot. Similarly he could have been intending to taxi back out to an open area for departure but stuffed up and caught the tail, as previously discussed.