Smaller amount of the unsafe code which is audited, battle-tested, and not extensible by either user nor third-party library developers.
(a) that's why people use cargo-geiger.
(b) you're arguing about the very small number of virtual machines that don't give their users such escape hatches.
Smaller amount of the unsafe code which is audited, battle-tested, and not extensible by either user nor third-party library developers.