Is this just specifying what has been known, that LoRAs skew towards the new training heavily and are not 'more intelligent' just 'more targeted' and become les

Is this just specifying what has been known, that LoRAs skew towards the new training heavily and are not 'more intelligent' just 'more targeted' and become less intelligent the more they are targeted? Or is this proposing something else? I am having a difficult time understanding exactly what 'intruder dimensions' are.