New UI is a step forward, but many people don't look at it that often. They use CatLight or similar tools that show them build status right on the desktop.
You are right - people come to Jenkins when things go wrong and thats why we've redesigned the result screen so you can easily pinpoint changes without having to endlessly scroll through huge log files. You can see this in the "Pinpoint Troubleshooting" section of the blog.
