Wait. Let me get this straight. Someone is an expert in this field. They're asked to speak at RustConf after a leadership vote. They've also written an article about reflection in Rust - a purely technical thing that is already pretty widely disliked conceptually. (EDIT: the talk was about this, but it's also compile time reflection and came with the usual disclaimer that it was not representative of any of the Rust…
Claim of "feeling uncomfortable" was invented to be a tool of political fighting which allows to declare something, or somebody as unacceptable, completely avoiding debates. As it's becoming generally normalized, it's absolutely logical that it spills into other fields of human interaction. It's simple, and efficient, so why not?