I wouldn't agree that "any technical achievement is easily replicated by AI," but porting software from one language or platform to another certainly qualifies. Who cares if something is written in Rust or APL or whatever? If you don't like the language it's written in, just ask for a rewrite.
(That said, LLMs don't tend to be hip to Brainfuck, so I'd steer clear of that one.)
APL is sufficiently different to Rust that a direct port is less viable
Rust programs usually have very deep dependency hierarchies, a gamedev project can legit have 500+ dependencies. It makes no sense to port them individually (though maybe LLMs actually make this dumb approach viable)
APL programming.. isn't like that. It isn't just a different language, it has a different shape
Rust and Javascript are interchangeable in some domains (and not interchangeable in others). You can convert between them more or less automatically
But APL? You would need some taste to implement in APL what the game needs, even if the actual coding is done by a LLM
(That said, LLMs don't tend to be hip to Brainfuck, so I'd steer clear of that one.)