I have noticed that in my niche real estate. The site with the least articles and content are ranking better in the last update. They have seemed to penalize content as all area content is similar or city information is 20% or so. The sites with no content and and just real estate listing are doing better. I have sites with 10 pages that do much better then my site with 500 pages of content.
The first 5 sites in my area have almost 0 content just listings. A big change.