if they had told the aliens the truth it very easily could have been kept from the majority of the population.
see if archer had told them who they were and the rest of the episode had preceded as was with the rescue there would have been no proof to back up the story.
instead of very possibly pushing this society over the edge because they now believe the other side has weaponry they have no chance of matching in a traditional fight they may have just pushed them into a first strike situation.
but if archer tells the military leader who they are and after they are gone he might just try and cover it up to keep from looking silly since his proof went away.
really the only hope archer had of not being partly responsible for pushing them closer to open conflict is that in the end the leader did believe (after second thought) they were from another planet after all.
especially if i remember that tpol was seen by them.
and i really liked piece of the action. even though the fun it lingered that this society had been screwed up due to the book being left behind.
and i dont see how the iotians were made to look stupid .
especially considering what was said about them.
yeah some of the thugs were stupid but probably chosen for that reason if they were basing stuff on a book about the mobs.
and if one remembers the ending
kirks solution wasnt perfect but it did bring the iotians in line to report to the federation and open the door for the socialogical specialists to come in that kirk seemed to drop off after he had to take action with some civilization ie return of the archons and apple.