It's tempting to read such stories as the academic report into 'dark money' (illegal, especially foreign, funding that may also exceed strict UK voting laws) that swung the Brexit campaign and threatens to leave the UK with a shamocracy like the US, where politics is dominated by who can gather the biggest (corporate) donor cheques.
That would be to ignore the role of the press within this social media, often fake news, campaigning. Getting stories planted in newspapers confers legitimacy, and once done, reporting their coverage reinforces the original point. Any later retraction or correction by newspapers won't undo the impact and influence of lazily inaccurate or ideologically inspired reporting.
Chomsky includes source strategies in his propaganda model; dark money, often from millionaire or billionaire individuals (including media magnates), not just corporations, spend fortunes funding (and disguising their links) think tanks and research groups who provide seemingly authoritative quotes on the points of view they want to push, and pressure politicians into following. This is a subsidy for the media, making it cheaper and easier to gather 'news', with think tank reports themselves becoming news stories and opinion pieces.
Can IPSO regulate this? In short, no; it already fails to adequately cover the global nature of most UK 'national' papers, many of which have more foreign (especially US) readers than British ones!
‘Dark money’ is threat to integrity of UK elections, say leading academics https://www.theguardian.com/politics/2017/apr/01/dark-money-threat-to-uk-elections-integrity?CMP=Share_AndroidApp_Blogger