Depends upon what type of flying you are doing. Before VLOS, if the location you wanted to explore or shoot panoramas was very remote and far away, you would not have been able to reach and explore and return by merely swapping batteries. If it took 10 minutes to fly there, and 10 minutes to return, with 22 minute flight times to 10% remaining battery (P3P), you would only have had 2 minutes to explore. If you could push it to 0% remaining battery, you were able to double your flight time at the destination, taking 4 panoramas during the flight instead only 2. Knowing where you are flying and what the limits of your batteries are is critical. It only comes from pushing the envelope and repeated testing and experimentation. Not for the faint of heart.I take your word for it but I am not going to change the way I fly. I have enough batteries and thus enough flight time to land between 10 and 20%. To me it is about safety and responsibility. Flying down to 5% is niether safe nor responsible, IMHO. But to each his own
What is safe and responsible depends upon the pilot and their experience. I wouldn't recommend it for anyone who hasn't already learned how the drone responds under forced Autoland, and knows how to overcome it, so they don't panic. Knowing how to turn Autoland off also helps. Flying along the coast is always safer than flying 3 miles out to sea, or around the lake instead of across the lake.
With current realistic flight times of 30+ minutes on most current drones, it is no longer necessary to squeeze every last drop out of the batteries. Besides, under VLOS, we are now only flying within a very small circle around the home point.