I'm not misunderstanding anything, I just disagree with you. You're totally right that it's a relatively poor metric, but assuming we agree it's unlikely that

I'm not misunderstanding anything, I just disagree with you. You're totally right that it's a relatively poor metric, but assuming we agree it's unlikely that the energy companies actively 'gamed' the metric (e.g. by agreeing to shut down gas and coal generation for that hour) it's still better to have that result, than to not have it.