This statistics with data missing is fixed in the OTA update. Some users who registered got an early access of that for testing purpose I am one of them and hence can confirm you that. A stable version is going to be released for all in about a few days. So all I can say for now is that its been already taken care of and fixed.
Also for those who took the connect plans and missing the features due to software bugs will be compensated for the period until which the stable OTA is not released (Announced by Ather in one of the other threads). So they are trying to fix the loss which we are actually facing due to issues.
Here is the link of that announcement
Also just in case if you have missed I recommend to look into all the post in Ather 450x category under issues and support where many who are facing similar and also other issues posted their views and experiences . Some posts can solve the issue which you might be facing or may face, some can help you know the actual reason for certain issues.