In the 1954 court case (in Scotland, was it?), Franz admitted that the view of the WTS is that they quite specifically do not want the rank-and-file to test what is written in JW literature. What they wanted was for the individual to read the articles, read the provided chapter/verse, and recognize that the WTS was correct.
His testimony made it clear that a JW who tested what was being written was doing it wrong. As a JW, you are supposed to read the material and come to an understanding that is in conformity with the WTS interpretation. Testing what they wrote is a sure way to get in trouble with the organization.