It is not accurate. As a purely factual matter, the White House has done no such thing. And the language you're relying on so heavily is just statutory boilerplate. The "determination" isn't some conspiracy theory veiled directive to SECDEF, it's a checklist item for delegating the authority in the first place. https://www.law.cornell.edu/uscode/text/10/12304

ok that makes sense, thanks for the link. the “deem it nessecary” phrase is indeed directly lifted boilerplate from that piece of law to make the authorization but it’s not an order in itself.