That's about the security of bank vaults, not Bitcoin. Fiat savings (or gold, diamonds, whatever) stored in the bank vault would be just as hard to steal.
Irrelevant because I cannot (a) give the content of the vault from memory to save my life or (b) enter the vault accompanied (so there's an opportunity to alert bank personnel that I am under duress).
Well "irrelevant" to the safety of the wallet at least, not of my squishy bits.