You and the other AL advocates have all become wonderfully adept at talking like a lawyer, so let me throw a few normal-language ordinary-folk sentences out here and you can all discuss how true they are
"So, I
can rebuild once at any level, despite being told I can't once I am past level 5?"
"I can rebuild even if I created a brand new Rage of Demons character that already uses some SCAG options? It doesn't say I'm excluded from the offer."
"So you can rebuild even if you have no intention of adding any SCAG material? This means the organisers must have found it not worth their while to restrict rebuilds to SCAG. It means they have sacrificed the rebuild restriction in order to not make the SCAG announcement too hard and complex to read"
"What does the two asteriskes ** mean at the end? Is there a footnote somewhere? To explain why I can't wait six months to rebuild, I mean?"