If they made the headline something on the line of "replacing protobuf with a native, optimized implementation" would not get the same attention as putting rust in the title to attract the everything-in-rust-is-better crowd.
That never happens. Instead, it always attracts the opposite group, the Rust complainers, where they go and complain about how "the everything-in-rust-is-better crowd created yet another fake headline to pretend that Rust is the panacea". Which results in a lot of engagement. Old ragebait trick.
Yep. The Rust Evangelism Strike Force concept has long been dead for at least the past few years. In many aspects, Rust has become the "boring" technology, like Ruby and Rails.