In theory valid point and I approve but I'd disagree the sustainability factor. Even with renewables we won't have infinite energy, so we still need to think what we need to use the availabile energy for. The taining ist already ridiculously expensive and should the model become extremely popular it might still pull a lot of energy.

Needs to be evaluated on a per model usefulness / Energy Consumption basis.

And I doubt most current models would score very highly on that. (but please tell me those who do)