It's an interesting story for those who haven't heard about that an think the NSA could only be up to evil. You may not have read it as the guard only ever lies, but that doesn't stop people from thinking that anyway.
No I think that's it. "What about it?" kinda set me off, and then "if you're confused by the wording" was unnecessarily condescending.
You coulda just pointed out that just because they did right in the case of DSA, doesn't mean we should actually ever trust them, which I would agree is the correct stance.
Mostly I think that story is neat and wanted people to know about it, so I asked a question as a performative writing technique.