You'll notice that in his 'best version' of the education chart, the y axis also does not start at zero. More precisely, the point he made was that _column_ cha

You'll notice that in his 'best version' of the education chart, the y axis also does not start at zero. More precisely, the point he made was that _column_ charts should always start at 0. He makes no blanket statements about line graphs to show trending. Also technically any graph that isn't numerically wrong is a problem of the public not taking care.