I just took a quick look and couldn't find anything in the study article for last week that touched on that. Maybe I missed it.
But there was something along those lines in the February 2017 WT:
- "The Governing Body is neither inspired nor infallible. Therefore, it can err in doctrinal matters or in organizational direction." - Watchtower, February 2017, page 26, paragraph 12
But that was "studied" back in the week of April 24-30, 2017.