It’s basically having one device that does it all with some shift combos and menu diving vs. multiple devices with simple and direct interfaces but a bunch of cables with noise, sync, patch management, and project saving/recall complications.
I personally don’t mind menus and key combos, if it’s well executed. Digi boxes are cool. In defense of Roland, I also really like the way MC-707 works, it’s very logically laid out on the screen and well thought out for the most part, especially considering how deep the machine is, yet still very hands-on for performance.
But I do prefer simple instruments with dedicated hands-on interface for sounds that I heavily tweak live, like some leads or arps, usually played by a mono.