Automatically publishing News Articles based on Microsoft Flow Approvals

Hi all, 

For our intranet we're trying to actively allow editors in our organization to post content such as news and blog articles. We're using the Modern Communication Site as a template.

The basic idea we had is as follows:

1. Editors to write a page and save that page as a draft.
2. When the draft is saved, catch the creation of a new item in Flow and trigger an Approval.
3. The Editor-in-Chief checks the article, makes changes if needed and approves it. 
4. Up on approval, we update the PromotedState of the draft to 2 (which is the Published state) to get it to show up as a news article. 
5. Editor is notified that the article is published. 

    

The only hiccup we're experiencing right now is that the updating of the PromotedState via this method does not have the same effect as actually pressing the 'Publish' button on the Draft page, the page is still in Draft.

Does anyone know of a way to trigger the actual publishing based on this scenario, or is this not yet possible and will we need to do this manually? Thanks in advance!