Would it perhaps make sense for the NSA to have a publicly discoverable weakness here, and had no plans of using these ciphers in the US? Then the NSA could ess

Would it perhaps make sense for the NSA to have a publicly discoverable weakness here, and had no plans of using these ciphers in the US? Then the NSA could essentially get more people to use a weak cipher. It would be a very blatant move because it'd be rather suspicious if the NSA chose not to use these ciphers. Still, the possibility might in small part contribute to this failure.