I'm starting to feel like a lot of the takes against Hasan are in bad faith. I watched a little recap and I felt it was both clear and obvious that YOU (normal person) shouldn't do what he did.
But being a notable person of interest who was already (questionably?) illegally caught up in a bad system, there's reason to believe things wouldn't take a turn for the better just because he asked to lawyer up. So he took a calculated risk and engaged with the situation enough to gather a first hand experience he could report on. Concrete evidence, there's value in that. It was his decision to make.
To reiterate, obvious YOU don't do that. Stay silent, lawyer up.
EDIT: Timestamped.