The point is that the underlying physics of classical models should still hold true as the climate changes - and where they don't hold, we will have causal insi

The point is that the underlying physics of classical models should still hold true as the climate changes - and where they don't hold, we will have causal insight as to why. But this isn't necessarily true for an ML model: as climate changes and develops new patterns, there is no reason to think ML will adapt to it (and a ton of reasons to guess it won't).