>Outside of DuckDB, PostgreSQL's core and ClickHouse, most of, if not all, the most impactful projects in the database world are now written in Rust.

This just isn't true. There are lots of important databases that are not written in rust. Many are written in other memory safe languages, like H2 and Cassandra are written in Java, cockroachdb in Go. Others like BigQuery, MSSQL, and Oracle are written in C++.

The initial premise is wildly overstated, so is the headline.