Oh, yeah in those cases they are helpful. Or in cases where people's habits leave certain vitamins and minerals out. But never mind that. Just pay attention to my edgy new study and talk-show appearances.
As is frequently the case, the article is misleading and misinterpreting the scientists.
Also just like /. tends to do, the linked news article headline is sensationalized and exists just to get people to read the story.
The scientists talk about three specific things: (1) Preventing chronic disease, including heart disease and cancer, (2) preventing cognitive decline in seniors, and (3) high-dose pills to prevent subsequent events after a confirmed heart attack.
For those three specific things, multiple studies show they do not provide statistically significant benefits. They found that high doses of specific nutrients could slightly increase the risk of certain cancers in people pre-disposed to them, which is why they recommended against the multivitamins for those in good health.
Note that also in TFA they agree that there are some health benefits in specific cases. These include vitamin D in the elderly for bone strength, iron and folic acid for pregnant and nursing mothers (and in unrelated studies elsewhere, also in men wanting children), those with poor nutrition, and for other specific situations.
Note that the studies do not say multivitamins are worthless, nor does it address any other health areas except those three. That is just the headline sensationalism.