First off, we want to thank you for your feedback regarding this particular change in functionality, where clicking the News tab after running a query in Search takes you to a clean News page. As always, we welcome and take user comments very seriously.
Sometimes Google will make smaller changes like this one in preparation for larger improvements to our products further down the line. We appreciate your patience during this process. To help maintain the quality of your Google News experience, we do have a workaround for this issue. Clicking the "News" option on the left side of the search results page will bring you straight to the Google News results for your search. The results should be quite similar to those that appeared previously using the "News" tab at the top of the page.