There was no reason Flynn, or anyone could see (at the time) for him to have counsel.
I hope you understood that's the way it was, and that you weren't implying Flynn was being reckless, or dumb.
There's a huge distance between him as an example, and this peculiar case for this woman.
Should a FBI agent approaches you and says "Good Morning, how are you?" if you value your freedom your better not acknowledge him/her and seek legal counsel. Even the simplest of questions and most innocent answer such as,"When you had your morning coffee, how many spoons of sugar did you use? When in fact, you used two, that is lying to the FBI and you just won an all expense paid 10 year vacation to one of their resorts. Don't believe it? Give it a try.