It doesn't show up in the online videos, but there was a huge contingent of people at that fireside chat wanting a reasonable safety story for C++. The committee simply doesn't have representation from those people and don't seem to understand why it's an existential risk to the language community. The delivery timelines are so long here that anything not standardized soon isn't going to arrive for a decade or more. That's all the time in the world for Rust (or even Zig) to break down the remaining barriers.
Profiles and sanitizers just aren't sufficient.