Why would she tell the plan? I mean if there was a spy on board she entire plan woud have failed and the resistance would be done. Plus Poe didnt really put himself in a good light when he disobeyed orders at the start of the movie and basically sacrificed the entire bombing fleet to destroy one star destroyer.
The problem with this line of thinking is that the stupidity moves way beyond this.
Lets just say that Holdo did think there was a spy on board. Okay, it is understandable that she would want to keep it quiet. How would she organize the mass escape without telling anyone? What about when there are only a few ships left? Is she still afraid of the damage a spy can do when most of them are already dead? What about when the mutiny happens? Why wouldn't she say anything there? They were ruining her precious plan.
The whole thing is beyond stupid. Whenever anyone brings this whole arc up, the complete idiocy behind it comes rushing back to me:
- Poe cracking "can you hear me now jokes" while Leia is crying about the casualties. Make up your mind on the fucking tone of the movie. Are we feeling sad about the casualties of war or are we having a good time laughing at jokes? You can't have it both ways.
- Leia tells Poe to stop his attack and he gets blamed for not following orders. Fair enough. Do the bombers and other ships involved in the attack not have radios? Did they all collectively disobey a direct order from their commanding officer? Were they also subject to demotions?
- The "chase" is one of the dumbest sequences in movie history. The First Order can't catch them, can't pass them, can't penetrate their shields (even though Kylo Ren just blew up the WHOLE COMMAND BRIDGE with a tie fighter), can't surround them, can't track small ships leaving the command ship (Finn and Rose go on a round-trip Vegas vacation in the middle of the "siege"), etc.
- Holdo is taken hostage and still says nothing about her plan. Apparently she knew that the idiot mutineers would not check her for a weapon and that a conveniently placed steam-emitting pipe would soon present itself to provide her with a means of escape.
- Why does Leia shoot (stun) Poe? Is it not clear that when he sees her, he would immediately step down?
I can live with other silly stuff like Holdo inventing the use of light speed as a weapon, space ships floating backwards after losing thrust, gravity in space, the Resistance/Rebels sending Rose with Finn (why?), etc. However, I remain supremely pissed off at the sendoff given to Admiral Ackbar, fuck you Rian Johnson!