Auditing Rust is much easier and faster than either Go or Python. They both contain a lot of footguns that are not always immediately apparent from visible code. Rust is much more explicit.
This is assuming equal familiarity with all languages but I presume this comment is more referring to talent pools & experience. A good engineer can traverse & review many languages but most are quite restricted in the scope of what they can easily read - they miss a footgun or two in python but they're not grokking any of the rust whatsoever.
I realized all the Rust code produced meant squat if it couldnt be audited well afterwards.