They probably reset the views. They've done it before.
Edit:
Mine show the views per source on the daily basis option (on the individual hub), but the total number shows 0. Guess if you really wanted to know, you'd have to add them up.
IE it may say 20 hubpages, 15 google, 10 yahoo, etc but total to 0
None of my new hubs show stats. Still says, "No statistics have been gathered for this hub yet."