I don't seem to go against the decision and action taken by El-Salvador, because they have the better idea of strategizing for a diversification on their storage assets, such that the entire holding capacity of their bitcoin could not all be in a single wallet, but when spread out in case of any attack, they cant be rendered more vulnerable for attack, while i sincerely doubt if the deliberate action on this was to prevent possible future attack from quantum, advisably, we should always expect that we make use of more than one wallet to safely secure our assets in case of future threat or attack.