It is surprising that you are not understanding what that passage means. I am a lawyer, but it should be clear even to a non-lawyer.
I understand that legalese can be interpreted many different ways, if vague enough, and depends often times on the whim of "controlling legal authority" (judge).
This particular set of EO's and amendments to the military code of justice tell a story and signal intent. The only impediment to follow through is the Constitution (maybe) and it just may come down to the Supreme Court ruling. We already know how Kavanaugh will rule. He told us.
Let's make sure we get him confirmed, eh? And then get on to gettin' on.
Bagster the non-lawyer.
Bagster