I did not say the younger you are the worse you are. I said he was only seven and he was very good to be seven. Everyone knows a seven year olds voice is not as developed as an older person. That does not mean he isn't good at all, just not as developed. He should be judged for his age, not for singing like a grownup with more experience.
Experience level and age is irrelevant when you get on the stage. Just the fact that you have to add emphasis to him being 7 proves he was never good enough for the one million dollar stage to begin with.