Those are just the auditors; the audit firms send charismatic and attractive people around so that the people whose work they're checking will let their guard down.
Not really, the title is usually something like a tech consultant with completely BS educational and career experience. But I do agree it could be red team but they are annoying as hell. Actually lemme show you one:
One common explanation to such things is that it is a filter: if a person doesn't notice something like that, there's a good chance they won't become suspicious later either.
Low effort pig butchering scams for lonely workaholics..
Also pen test teams will use halo effect when it's an option.