Yes of course. What Randy is demonstrating is that when it comes to something that in the worst case scenario may catch fire, how far is too far? Most people are happy with using a good quality charger, and not leaving a charging battery unattended. What a steel box represents is peace of mind.
Irrespective of my usage profile, I will dump batteries after a year just to be on the safe side. Batteries are easier to replace than houses or loved ones.