I take safety very, very seriously and I will keep to the spirit of the rules as best I am able. Video is an important component of safe flight, and the fact that the rules do not incorporate this fact makes the rules outmoded and dangerous.
When cars first came out, one town came out with a requirement that a man with a lantern or cowbell or some such walk in front of the car at all times while it was driving. To me, the LOS "rule" is in this category - outdated to the point of being silly and even dangerous.
Flying without clear video, even when you can see your drone as a dot in the sky, is taking an unnecessary risk. So the "rule", originally intended for safety, is actually promoting risky behavior by marginalizing the importance of the video feed.
It's important to know exactly where your drone is, and where it is headed, and any nearby hazards or risks to others at all times. Relying on instruments, including a distance, height, speed and direction, plus a high resolution video feed, to accomplish this is a safe way to fly your drone.
It gives me the willies when inexperienced people fly any distance away without it, or with the sun on their screen so that they miss obvious hazards and put others in danger - not to mention crashing their drones. At any kind of distance relying on LOS alone is more risky than using a good video feed.
The rules must and will be changed to reflect the new reality, hopefully sooner rather than later.