We aren't talking about autocompletion. The post upthread describes "the tools to ensure...data integrity": i.e. type system or static analysis features to prevent bugs.
That said, if you're trying to argue that autocompletion is more difficult to implement for Rust compared to Go because Go is simpler by some metric, then I disagree there too. Any static language (well, one that doesn't intertwine parsing and semantics like C++ does) can support autocompletion with comparable levels of implementation effort.