Perhaps the comment was intended to convey the very different potential for intuitive "understanding" between visualisable classical theories and non-visualisable quantum theory.

At a fundamental conceptual level it does not map to anything in our normal experience - attempting to force analogies etc can end up confusing things further.

I agree with your original observation btw, but it's important to recognise the limits we may be bound by in explanation and comparison.

There is a difference between understanding and “understanding” (intuitively, no less!).