That could very well be true. But Stone knew he was going to be arrested, why did they need a swat team? Why not set it up with stones attorney and drive down to the police station? If they thought Stone might be destroying evidence, they still could have done the entire thing with 3 agents. It was theater. Someone wanted to be sure it was seen as a big deal so they made it a big deal. It guaranteed that this became a page one story instead of page three.
That doesn't mean Stone is any more or less guilty, that has to play out in court. But the big production number at the opening sets the stage for act II, and probably has a pretty solid psychological effect on Stone.