It's the Society's usual double standards at work. "Leave it in Jehovah's hands" means nothing more than "we don't want to deal with it for reasons we're not going to explain." It usually means that there is some reason the person or persons who say it really do have some understandable reason, but they don't want to reveal it.
For example, one "anointed" JW once told me that my criticisms of WT chronology were correct, but that I should "leave it in Jehovah's hands". A dozen years later, nothing has changed.
Many years ago a pioneer woman married a wealthy immigrant, who had recently been baptized, for his money. Predictably, after a couple of years, the marriage was in trouble, the husband had quit going to meetings and the woman was pulling some nasty things to prepare for the inevitable divorce. The elders knew all about these nasty things -- things that normally would result in some sort of censure or even DF'ing. I was friendly with the husband and he told me what was going on, and so I demanded of one elder the reasons they took no action against the woman. He said it was because the husband was no longer active, that they wouldn't do anything. I told him I thought that was terrible, that they would let injustice be done to a fine man by a nasty JW merely because he was inactive. He sort of agreed, and then said to "leave it in Jehovah's hands". Of course, now more than 30 years later, nothing has been done, and the woman remained a pioneer for some years.