Look at the picture, the hands are very high... Remove the tourbillon, the hands will be much lower, and the height will be drastically reduced.
From an horological point of view, I agree that the tourbillon is a good point, as long as it is flying and orbital, of course. But look at the Patek Celestial. It has no tourbillon, but it is highly captivating, don't you think?
3 pieces only: Yes, it is not enough, but it could be a good reason to offer something different, in a bigger series, don't you think?
Best,
Nicolas