The Washington Post corrected their story. This is a key differentiator for higher quality publications. They try to get it right but if they don't, they must prompty correct their article.
The article from The Intercept comes across as more alarmist than the original one from the Post. The second paragraph reads:
> While the Russians did not actively use the code to disrupt operations, according to officials who spoke on the condition of anonymity to discuss a security matter, the discovery underscores the vulnerabilities of the nation’s electrical grid.
There's a nuance that seems to be lost in Greenwald's interpretation of the article.