Puffery is another prerequisite for being a Trump supporter/aide. Just look at the recent "Navy Seal" debacle over at Fox if you need another example.

Trump, in his own words, introduced George as a member of his national security team (one of just five people chosen). He referred to him as "an excellent guy". Look it up.

"Little known" aides, aren't mentioned by name by the candidate as members of their national security team. They aren't referred to, by name, as being "an excellent guy" because if they were 'little known', the candidate wouldn't know who they were. This guy was named explicitly by Trump, complimented, and given a seat at the table during national security meetings. Pretty hard to be little known when the boss himself is boosting you and giving you a seat at the table.