I think in cases of physical abuse the advice is clear cut. No one should tolerate it and there is plenty of help available although many mothers fear loosng their children if they make the authorities aware ( I'm just being honest here). And that is in western countries. In many places homelessness rears its ugly head if a wife chooses to leave.
But in many ways the real problems arise when the abuse is more subtle, as in the case above. Financial control, psychological and emotional abuse. Shouting and name calling etc aggressive and demeaning speech.
Without therapy people rarely change and if they are young the stress of raising a family and JW demands can bring out the worst in men who cannot cope with that stress in a healthier way. Either that or it is learnt behaviour..