I actually wouldn't have a problem with the Governing Body calling their teachings "understandings" as long was we were allowed to treat them as just that: Their understanding of this or that and nothing more!
But the reality is that--in JW-land--you can be disfellowshipped for merely disagreeing with or even questioning their "understandings."
As someone around here used to like to say, "Let's review: It's a cult!"
And that is MY UNDERSTANDING of this clusterf*ck knows as Jehovah's Witnesses.