Sp2 URL Integrity Checking: No warning displayed in the workflow engine when there is a broken link on the page (or a broken file or a WAI problem)

I have some broken links and some broken files on my page and I do not see any warnings any more in my workflow engine. However I could'nt validate my page. So it would be good to indicate something to the end-user.

Second point: When I see the intergrity warning in the workflow engine, I have no way to bypasse such warnings. There is no role in order to say who can bypass such warnings and who will be blocked by such warnings. Si I would suggest adding some roles regarding whom can bypass WAI and other integrity issues (we should still mentionning them but the user should have a way to mention that they bypass such and such problem on case by case basis with a checkbox to approve). Other users should be blocked (and in such a case, they should'nt be able to select the page in the workflow sitemap).