It depends if you think touchscreen is all that and a bag of chips, and obviously you do. Touchscreens are only as good as the software that supports them and that you are accessing.
Lexus, for example, moved away from touch screen and implemented the mouse pad. The big debate is how easy it is to access menus etc. and most of the systems out there have become to complex, even with touch screens. The MBUX from what I've studied does seem to streamline and make this better.
Personally, I don't like touch screen because of fingerprints, having to reach while driving and the failure rate is higher and replacement cost ridiculous. The current command is certainly not outdated in terms of how it works and what it does compared with BMW, Porsche, Audi and Lexus. I know folks who love the touch pads because they don't have to take their hands off the wheel. I'm one of those. For example, I had ordered an A-class but just pulled the trigger on another c, because of how disappointed I've been with the CLA and GLA. Granted, the new A-class is an improvement but I'm just not ready for cost cut, front wheel drive, entry level. Even if it has a touch screen.
That said MBUX looks to be an impressive leap, which integrates touch in a way that is more intuitive.