I don't see how it is deceptive. It's stated quite plainly that it is a record, and not a normal occurrence. (None of this is spoken in a harsh, rude, or sarcastic tone.) How would you say it differently? (Real question.)
The title suggests peak energy demand, in fact it achieved it at minimum energy demand (early hours of Sunday morning)
It's like an airport saying that all it's flights were on time at peak - then saying that they didn't mean thanksgiving, they meant that on sunay morning they peaked by getting both flights out on time.
