Yes, they are a good combination and many use them regularly for cleaning.
What they are meaning in the Care2 article is the acidity of the vinegar and the base of the baking soda neutralize each other. You would not want to clean with just baking soda or just vinegar, but when you put the two together they neutralize each other and create a good cleaning agent that can remove some stubborn stains in the bathroom and kitchen that other cleaners might have trouble with.
All the best. Please be sure to hit ACCEPT.