The doors in the pic are one piece, with a decorative cut on the front.
Actual rail and style doors are how you make doors out of hardwood. They are stable and they use less wood (the panels are thinner). In modern manufacturing, standard sizes of doors are churned out by factories and they use that style to same a lot of material. That isn’t an american thing, is it? To me, depending on the design choices, it can invoke either “high class” or “hard working country” style. That usually comes down to a clear finish vs paint.
After you have chosen the door, the hinges are a separate decision. The european style hinges are hidden, and can do soft close. Those style of hinges are the norm for cabinets.
In this piece, this is going to be a hard working, form and function cabinet. The hinges are high on function. The doors are stable, durable, painted. The decorative element adds something to look at. It makes it more obvious there was some thought put into it, and it (to me) invokes a bit of a country style.
Seems totally reasonable. I don’t know why anyone would question it. But I am American. I wonder what is different about the rest of the world. I assumed it was common. Mostly because Ikea uses the combination a lot: