1. Husband of one wife may be translated three ways, and applies specifically to church leaders even if one embraced only one translation of that verse.
2. Polyandry is forbidden in Scripture.
I do live deep in Mormon country and though most Mormons today reject polygyny as being godly some will still agree to the principle of it. However, I've never met anyone who thinks it's OK for a woman to have more than one husband.
I am not a mormon, and do not see any passage that encourages polyandry.
Perhaps this is the exception...that it is OK for a woman to have more than one husband if one of them is suffering from Alzheimer's or is otherwise "brain dead".
It still is forbidden.
But, the only way it is possible that it's OK for anyone to have more than one spouse is if it's OK all the time. Either the Bible teaches polygamy or it doesn't. And, if it teaches that polygamy is OK, then it's OK all the time...and if so, then it's OK for women to have more than one husband just as it's OK for men to have more than one wife. Just because any examples of polygamy we have in the Scriptures is polygyny doesn't mean that polyandry is sinful...it just wasn't culturally common in that area.
It is more than just an issue of example, it is an issue of authority, leadership, and allowable covenant.
Or, are you going to make the claim that it's godly for a man with a wife suffering from Alzheimer's to take on another wife, but it would be sin for a woman with a husband suffering from Alzheimer's to take on another husband. How would that fit with Galatians 3:28 and that we are all one in Christ?
It would fit with Gal 3:28 based upon the context principle. It has nothing to do with marriage, but specifically is referring to justification by faith.