@strawCake - It does sound convenient to have all that information in one place. However, the Federal Acquisition Regulation is a very large document. As the article says, it has 53 parts!
I'm not sure how many actual pages that is, but it's probably a lot! I actually did a little bit more reading about this thing, and not everyone thinks it's so great.
Some people think this set of regulations is so complicated that small businesses get discouraged and don't compete for government contracts. I'm not sure how true that is, but the idea is definitely out there.