The old term for .NET/Java was "Managed" languages. "Managed C++", "C# is a managed language", because they all manage your memory for you.

Rust's primary language feature - the borrow checker - is about adding compile-time checks on resource management(mainly memory), and the original article talks about boxed vs. value types being a major source of inefficiency.

So talking about Rust in a comparison of C and Java mentioning memory indirection bottlenecks seems about the most relevant place to discuss it.