pageoneresults - 12:14 pm on Aug 30, 2011 (gmt 0)

Am I missing something?

I'd say less than 2% of websites have implemented Microdata, that's a rough guess based on my observation of it catching on. I would think that anyone using Microdata is going to see a more robust and controlled SERPs display. Those who don't, Google will do its best at guessing. They're appealing to everyone in this instance, not just those using Microdata.