Fun rewatching this 2 years later in light of the LayerZero hack. Everything Bryan says is 'correct but incomplete.' In theory, you shouldn't have a single node that needs to be compromised to mint millions, in practice, they did. Being 'unopinionated' in this case is indistinguishable from being wrong.
https://youtu.be/KGEpfDE49w8?si=MNB_VVCCx3eI2XeF