The Pentagon already has programs like MilCloud in place for redundancy. JEDI is far from the Pentagon's only cloud program.
Btw, Google is years away from getting the kind of security certifications you'd need to run a cloud from the Pentagon. Oh, and the Project Maven thing.
You're just restating points from the Vanity Fair article, which was sourced almost exclusively from the dossier. In reality, "ruggedized" is a fairly common DOD term for battlefield IT. The 32g RAM is mostly arbitrary and others, including Microsoft can deliver it. The single provider solution makes sense when you're trying to centralize a fragmented cloud environment.