Husbands beneficiary

With my husband's job, I just found out he listed me, AND his parents as his primary beneficiaries. Shouldn't it just be his WIFE. Basically if something happened to him, I would have to split his life insurance money evenly with his parents. Whatever happened to "a man leaves his mother and father and marries his wife"?! Opinions? 
(We do not have children yet) 

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