If a man shouldn't share his frustrations with work with their wife, and a woman shouldn't share their frustrations with the household with her husband, then who are they suppose to talk about frustrations? Does mean everyone needs to bottle up their frustrations? Is that right?
I think what it's probably getting at is: Don't whine.
I think it's a judgment call: If there are household troubles that he needs to know about, then talk to him about it.
Then there may be some things where she might be better off venting to a confidante, e.g. another woman who is discreet. And as far as venting frustrations to the husband, hopefully she has the wisdom to know how much is appropriate, and how much is too much.
I remember a good priest who said that, as far as what might be called "complaining," people should have a confidante to air their frustrations with. For some things that might be hubby; for others maybe a female friend. [And likewise with the husband.] And all should try to have (pray for) the good judgment to know how much is appropriate, and how much is too much. I don't think keeping them bottled up is the solution.