Not sure. Do I look like Google? Why haven't they removed their stance on being the Worlds Most Powerful console? Why have they claimed to be the worlds most powerful console and most powerful Xbox for over a year now and still do?
Xbox Series X is the worlds most powerful console. It's also the only FULL RDNA 2 console. RDNA 2 > RDNA 1.1 and 12 > 9
Everything You Need to Know about Xbox Series X and The Future of Xbox… So Far - Xbox Wire
MORE IMMERSIVE AND RESPONSIVE GAMES FROM THE WORLD’S MOST POWERFUL CONSOLE The Xbox Series X will be the ultimate console for players who want the most immersive games from a device designed, built and optimized for gaming with zero compromises. Powered by our next generation, custom designed...news.xbox.com
You're the one who claimed nothing's changed. MS clearly seems to think differently because otherwise why would they change the ad to something else entirely in the months coming up to launch? Most powerful console ever and most powerful Xbox ever are two entirely different things and MS knows it, that's why they changed it.