Interesting to read the link, which is from The Guardian:
Wikipedia editors have voted to ban the Daily Mail as a source for the website in all but exceptional circumstances after deeming the news group "generally unreliable".

The move is highly unusual for the online encyclopaedia, which rarely puts in place a blanket ban on publications and which still allows links to sources such as Kremlin backed news organisation Russia Today, and Fox News, both of which have raised concern among editors.
I think that last sentence is intended to mean "Wikipedia's editors have raised concerns about quoting from both Russia Today and Fox news" I'm fairly sure that it is not Russia Today, or Fox News, which have raised the concerns.