I’ve never found Screen Time all that useful, for the same reason as the article - it can’t distinguish good usage from bad usage. Screen Time only counts time - but it can’t tell which minutes is doomscrolling and which are used more positively.
Maybe that’s an application for Apple Intelligence, although there would be some pretty big privacy issues there.
Screen Time is also not helped by only working on Apple devices. It can’t account for time spent using using non Apple devices like TVs, consoles, PCs with other operating systems etc. it might have been more useful if there was an external API screen time software for other platforms could report to.