Is it just me or there is really something amiss with this article?

Physicists have now confirmed that the apparently substantial stuff is actually no more than fluctuations in the quantum vacuum.

So, if they have NOW confirmed this, why didn't the article cite the work that confirmed this? Also the article didn't mention anything on who confirmed and how. It talks about some computer simulations and concludes:

Although physicists expected theory to match experiment eventually, it is an important landmark.

Since when did physicists start considering computer simulations as experimental evidence?