I think this question is best answered by taking into account the differences between a right and left brain. For example, if an Engineer can learn a new way of creating Art, can an Artist learn a new way to find the answer to a mathematical equation or learn to read a blueprint?
For me, that is highly unlikely simply because I have been an Artist all my life and reading maps or measuring isn't a strong point, nor is it something I can easily learn or even enjoy.
Therefore, I would have to conclude that it would be easier for the Artist, who already has the basic foundation of creativity working for them, while those that are not artistic would find it more challenging.
Also keep in mind that the question was, "Is it EASIER"....not impossible. I think a non-artistic person could learn it but it wouldn't be easier for them as opposed to giving it to an Artist.