This seems like a common way that to me completely side steps the actual question. Sure, your brain powers intelligence, but nothing we have nothing on how it could create awareness, which seems qualitatively different.
It answers very clearly these questions posed by the person I was responding to:
> why I am currently occupying the body that I am as an observer, and not another one, or perhaps even none.
It definitely does not answer the "hard" problem of consciousness, which is what you're alluding to and which I specifically and explicitly said it didn't answer.
Your actual stated questions (why am I me and not someone else, etc) are in no way part of the "hard" problem's formulation, and are indeed easily answered by materialism as I noted.
Perhaps take a look at the wiki article on the hard problem: https://www.wikiwand.com/en/Hard_problem_of_consciousness