I think that each function has an advantage and disadvantage in each person.
For example relates to emotional expression, but also loss of objectivity. Is a strength or a weakness? Well, it's both. This is something neglected by Socionics.
Another example I'd like to use is the polr of ENTjs which is . In socionics, it is treated as the greatest weakness. But is it really the greatest strength? Without asa polr, ENTjs wouldn't be risk takers. The weak polr allows them to be detached from physical comfort, and therefore willing to take risks and test limits. Sacrificing comfort is no big deal for ENTjs.
What are your thought on this?