He certainly looks like a dwarf to me BUT people, let's look at the good side of this situation --- he is obviously very much loved, and being very well taken care of. From the looks of things, he will have all the proper care that he will need to live a comfortable life, for as long as that may be.
It could be so very different - thank God that he ended up in the home that he did, where he will bring endless hours of joy to his owners and in turn be given a wonderful life. I only hope that when the time comes (and sadly it usually comes early with dwarfs) that his owner has the support that she needs to end his life in a humane, pain-free way. I am not meaning to sound gloomy, but we all know that the life expectancy of dwarves is much less than most minis - and given that they are so smart and so quickly can worm their way into your heart, it is going to be a very difficult decision for his owner to make.
Many hugs go out to her for opening her heart and her home to little Einstein.