So do you remember the terrible earthquake and collapse that happened in Türkiye and do you think there will be any technology advanced enough to know the full extent of mother nature's fury? It seems like you are trying to blame the government for the natural disasters caused by mother nature.
As I understand what the OP is trying to say, the OP is pointing out the disadvantages when we use steel plates to store seed phrase and they are hidden in the house or backyard. That shows that every method has its drawbacks and nothing is absolutely safe.
Your bracelet looks beautiful and quite secretive, but can you guarantee that if you encounter a strong impact it will not fall out of your hand? Don't be too subjective, everything has its risks.
Even there was no warn from the government, you don't have to panic because you need to wear the bracelet all the time, even you're sleeping, you're still wear the bracelet.
Every method has it's drawbacks, but this solution is the most safest.
If you see this solutions is too subjective, how about heavy flood that mentioned by @OP? it's also subjective since natural disasters didn't happen in every country and high unlikely to happen.