It's informative to analyze this as the manipulative tool that it is.
The WT leaders make a list of behaviors that they don't like and label them with a denigrating term: spiritually weak.
Note that the list includes a variety of behaviors and attitudes that an individual might have. These are indiscriminately lumped together as if they might have the same root cause. This is clearly NOT the case.
A person that has a drinking problem should not be categorized with someone that has doubts (lingering or otherwise) or someone that has legitimate complaints about the actions of the elders or the WTBTS.
And yet they just lump them all together. Why? Because the WT leaders have learned the power of conflating different issues as a means to manipulate and control.
This expression can then be used to paint someone unfavorable. When a JW calls another JW "spiritually weak" it frames the situation such that the one doing the labeling is assuming a position of strength and authority.
Usually, the one so labeled will not contest the phrase. They may even believe it themselves due to their indoctrination. But even if they don't, they know that arguing the point will only cause them more trouble.
The reality is this: when an individual realizes that JWs do NOT have "the Truth," and that they religion is a sham led by hypocritical cowards and liars, they have some serious decisions to make. A person that is emotionally and spiritually strong will leave the religion.
Often, what the WT labels as "weakness" is actually strength. The heroes of the Bible stood up against wrongdoing, hypocrisy and lies. Those in power never like that.
Some things never change, just the names ...
