Whenever you have been stopped by an Officer of the law and are not free to travel as you were prior to the stop, you have been arrested in order to stop that behavior.
You are correct, technically you have been detained, but the purpose of the detainment is to stop the dangerous, ilegal behavior. Whether it is a traffic infraction or misdemeanor, you have been stopped from continuing the actions which triggered the official response fro the Officer.
Where I went wrong in my previous post was to not clarify at what point you were detained and where that devolved into a legal arrest that is recognized by the court.
For the purposes of the OP's post, if you refuse to comply with the investigating Officer's requests to disarm, you might regret it.