If you "hate to armchair quarterback this," then don't. Power lines are usually not visible from above. (Hint: look for power poles, not lines. You'll likely see them first, although you might be very low by the time you do.) A successful off-airport landing includes picking your landing area fairly early, setting up an acceptable pattern to get to it, and then executing a stabilized approach to your intended touchdown spot, just like any other landing. If you choose a road, by the time you get low enough to see power lines you are probably so low that you are committed to the road regardless. Utility poles range from 20 to 120 feet tall. Would you rather hit a pole at "flying speed," causing a loss of control, and fall the last 20-120 feet with all that forward motion, or land in the snow at a slower speed and slowly go over on your back onto a relatively soft surface? (Near the end of the video you can see the line in the snow where the plane slid, disapating speed, before it finally went over.) I hope I'm never in a position to have to pick one or the other of those options. Until I am, I'm not going to "armchair quarterback" a guy who was. I'll just point out that what he picked, for whatever reasons he had, worked. He and his passengers walked away. That's the bottom line.