yes, why not?

Love is the foundation of a happy marriage; 道义和责任 are the necessities of a lasting marriage. I don't think they conflict with each other. When you love someone, you care about him/her and want to make him/her happy because you will be happy too. Can you imagine two people who loves each other, but don't want to have any 道义和责任 in their relationship? Do you think they really love each other if they have this kind of relationship? In real life, I never saw this kind of "love".

If there is only 道义和责任, then the marriage is just a contract. Will they last? Very likely, because two parties are binding together by the benefit brought by the contract and it will be too expensive to breach it. Will they feel happy? Who knows. Different people have different definition about happiness. But how many people are there who wants only 道义和责任 in their marriage, and no place for love at all? I guess only very few -- the writer of the article should be one of them.