You say not true but the article says not enough data: "The study finds no evidence of Omicron having lower severity than Delta, judged by either the proportio

You say not true but the article says not enough data: "The study finds no evidence of Omicron having lower severity than Delta, judged by either the proportion of people testing positive who report symptoms, or by the proportion of cases seeking hospital care after infection. However, hospitalisation data remains very limited at this time." Emphasis on that last sentence.