Yes! The number of settings where $RUST_COMPETITORS are applicable is simply smaller than the number of settings where a high-level, dynamic or at least garbage-collected language is applicable. It's hard for me to imagine having a real justification for building services in Rust given the relative productivity of those high-level languages.

This is basically the reason I haven't picked it up for any personal projects, either. I admire the goals, but my interests don't call for a C++ killer.