Sorry, not buying it...the WT has kept the "ministry" at the forefront all its damn life and to remove the one thing that keeps people in check, recording hours, will demotivate dubs.
You got a brother and sister, young and married with no kids...they do 8 hours a month each to be seen to be "in the truth".
If they do not record hours anymore they will be motivated to do less because the only reason they do 8 hours a month is to be seen and record hours and send them to their Book Overlord.
NOT recording hours will undoubtedly means less hours will be done by dubs...and the WT will not have that.