Yeah I don't like this. This statement is way too vague, off-handed and dubious to actually put on the profile.
3-A assumes that 343 is telling the truth and has created the universe in a timely manner (meaning not over time). And Low 2-C assumes he has created time as well, which we have absolutely no evidence for. And this is for a character whose best feat is 9-A, and who has preferred to use subversion and tricks to get his way (e.g. deleting the orders of a Researcher trying to look into him) rather than using actual brute power.
Like I hope I shouldn't have to tell you guys that someone's proof for creating the universe being "summoning a hamburger" isn't a great look at all.
And while yes general EU stuff isn't usually taken into account when it comes to AC, in this case it shows that most people, especially on-site, interpret 343's claims as, at the very least, dishonest. And this is already something that's heavily implied in the article itself. So I'd rather not go against the implications of the original article and the general interpretation of 343 on the site just because people would rather take 343's statements literally.
And no, you don't need a calc for reality warping, usually, as it's not directly quantifiable. 9-A is fine.