This is a very silly framing of the relevant issue. It's like saying "if a text-to-speech converter is analyzing speech, interpreting it, and converting it to written language, but is not 'listening,' the word 'listening' has no meaning." No. "A meaning different than mine" is not "no meaning."
Again: what we’re doing here is defining “understanding” as “the thing that humans do.” If a model is accurately absorbing new information, solving unsolved problems of incredible difficulty, engaging in detailed back-and-forths, but is not “understanding,” the word “understanding” has no meaning.