I can understand the point that X Lang is easier to write a DSL parser/interpreter in than Y Lang for a bunch of reasons, including memory management (I've hit

I can understand the point that X Lang is easier to write a DSL parser/interpreter in than Y Lang for a bunch of reasons, including memory management (I've hit the recursion snags a few times writing parsers in Rust myself - I get it). So I don't want to denigrate their design decision. Just the logic seemed out of nowhere to me, like this shouldn't be terribly surprising to a language developer, and it's framed like they're discovering things for the first time.