The difference here is that Harold Ford is a single man that is well known for his preference for vanilla ice cream, whereas Obama is a married man who loves his Black family.
I think when people are looking at this video, they will remember how Obama and he does this all the time, praises his beautiful wife and tells the world, he is the lucky one because his children are so beautiful because his wife have the better genes; I believe people will remember this for what it is - a silly little prank.