I was not interested in the Cybertruck, and I find it relatively ugly and many of the features don't apply to me. However, a solar-charging option is BIG news to me. I'm surprised this was not mentioned on-stage.
It wasn't said onstage because it was an off-the-cuff response by Musk to a random tweet. Like when he said the Roadster will have rocket boosters. Why is it an "article" on TechCrunch is the real question.
But I'll ask: how is slapping a solar panel on an electric vehicle "BIG news"? According to Musk, it can add 15 miles per day; that's a few hours of walking, and has very little practical value.