Not surprising about the WTS, they have a "legal" approach to their statements, a lies by the act of omission.
In the Bible, lying generally involves saying something false to a person who is entitled to know the truth and doing so with the intent to deceive or to injure him or another person. (Insight book under Lying) (Definition (not found in WT publications, I wonder why?!)Lie of omission:
What is lying by omission? Lying by omission is the deliberate act of leaving out important details so the truth is skewed or misrepresented. It's the counterpart of lying by commission, or using false direct statements)