Just a few points
1) Oracle said that JEDI “virtually assures DoD will be locked into legacy cloud for a decade or more” Ummm, the cloud technologies are a service. I doubt any vendor would be able to sustain a "legacy cloud" as hardware and software would change without regard for this single contract, though it would be like the Pentagon to find a way to make that happen.
2) Oracle, the company which has kept licensing and costs so structured as to keep their clients on decade-old versions, said “stated objectives of flexibility, innovation, a broad industrial base, and keeping pace with evolving technology,” Really, Oracle? Really?
3) Oracle again: “stated objectives of flexibility, innovation, a broad industrial base, and keeping pace with evolving technology,” See all of the above. The cloud will change. The Pentagon will (slowly) change. Having a single source for services most likely won't alter either party to the contract.
4) The DoD “has little idea what type of cloud services will exist in 2025,” Oracle said. And neither does Oracle. JEDI is a contract for services that can give the Pentagon a place to go without forcing endless bidding and quibbling, like Oracle is attempting to ensure happens now. Hopefully, even the government will realize that Oracle is in decline and newer, more efficient data services are likely to come from somewhere else. Any cloud services provider will be able to keep up with those improvements. That is, if the Pentagon doesn't contract with Bill and Ted's Most Excellent Could, run out of a basement in Cleveland.