Presumably you want to eliminate 'bad' pages as quickly as possible.

Would it be possible for there to be an interface to the Linter/parsoid check that could be run on a preview (like with the current page information stats) ?

The relevant 'bad' line could then be highlighted in the edit form, or a link that finds it similar to the approach taken on the existing special pages. The intent here is to highlight problems during the edit/preview cycle, so that markup causing bad structuring doesn't get inserted in the first place. ...