Yes, that is a good point: however everyone who was helping him was so obviously a villain, or were offscreen and uncharacterised, like the captains of the Warspite and Tonawanda.
My biggest wish is that he and Velk had not committed the assassination. Earlier when blaming the Tzenkethi was simply political opportunism, Ishan felt more believable. But a full-on Oliver Stone JFK conspiracy? It was unfortunate, and also sidelined any validity the hawks would have.