alright dude all of the reasons you are completely f**king wrong:
1: he's out of character
2: you literally have the exact same personality
3: he shuffled the entire core to make maps and signs not make sense, implying he can read
4: mettaton can pronounce every word you just said by dialogue of the game
5: looking at both characters and the things they do, METTATON IS SMARTER THAN YOU.