They removed it because of people like you. People who do not understand the meaning of the word "estimation" nor that you cannot predict the future at all. The best way of measuring battery life was, is and always will be by running a specific use case and measure battery life with a stopwatch.So instead of actually fixing the inaccuracy they decide to remove all indicators?
Anyone who's in the reporting business knows how unbelievably bad people are at understanding the data that is in the report. They never know the difference between actual numbers and estimates, most think they are the same.
I'm hoping the Linux world and Microsoft would do the same. That should make life for tech support a lot easier. No more needing 15 to 30 minutes of explaining what an estimation is and why battery life is different than whatever the OS tells you. If only reporting would follow...