The UI screenshot in the article makes that mistake VERY clear, and their "are you 100% sure" question is obviously intended to illicit a particular response (who is ever really 100% sure of anything?).
I know this article is about how systems can be altered to protect patients, but much like with the NTSB's findings, sometimes it legitimately is pilot error (or doctor error in this case).
Can things be better? Yes. Absolutely. But so can doctors. These types of systems are stop-gaps, without them this doctor could have calculated the wrong dose by hand and made just of large of a mistake.