Anyone who looks at Elon Musk can tell hair can always come back if you have enough $$$
Elon was lucky to have great donor sites for the hair. Likely also started using finasteride, minoxidil, and a DHT inhibiting shampoo right around when he got the transplant if not a couple years before.
I've had 3 hair transplants myself, and have spent enough time in and around hair transplant surgeon's offices to know that the vast majority of cases don't turn out as well as Elon's. Most people just don't have enough hair.
The angle, orientation and position of EACH AND EVERY transplanted graft (of hair follicles) determines the final naturalness of the outcome. This is determined by the “stroke” of the surgeon’s hand while making the recipient sites and cannot be changed by technicians during placement.
A typical poor outcome from a “chop shop” or inexperienced surgeon will likely be unnatural due to a combination of a poorly designed 2-dimensional hairline shape as well as poor angulation of the grafts creating a contrived appearance—like the example you described, but there are many other pitfalls that can occur.
An artistic surgeon will excel at the nuances of hairline shape, variations of transplanted density across the recipient area, graft size (1, 2 or 3 hair grafts) and angles of growth to create undetectability AND coverage at the same time.