39 minutes ago, Daeglan said:No. What I pointed out are things that don't make sense in character. Like we are all gonna die if we don't get out from under the thumb of the first order. So I am not going to do anything that will improve the odds. just get this random hacker who might defeat the tracking. Not gonna call for help? Not get fuel. Meanwhile Leia who had been in the Rebel Alliance for how long? Who used to have the rebel alliance scatter to avoid tracking doesn't use that trick? No they choose to sacrifice the fleet. It isn't that the choices are sub optimal. It is that they are out right stupid decisions that make no sense militarily. If someone is an admiral they should make better decisions. Add to that that Rose knows about how the tracking works but Holdo doesn't? really? I just don't buy it.
Rose speculated how the tracking might work, because she's a mechanic. Holdo is not a mechanic, and wasn't even aware there was tracking being done until Rose and Finn had fled. From Holdo's perspective, hyperspace tracking was impossible, and there was probably a spy onboard.
The fleet did partially scatter. Several ships from Episode VII (black squadron) did not accompany the group in VIII, and were part of the allies that Leia hoped to contact.
The reason the Resistance didn't call for aid from the Raddus was because the First Order would naturally notice the outgoing transmission, and expect back up to arrive. The Resistance's plan was to hide out on Crait, wait for the First Order to pass them by, then contact for help once the First Order wasn't following right behind them.
This is all very clearly spelled out in the movie.