BloodRevan said:
Personally, I think they have very good reasons to be working together. A rampaging dragon is very much an Enemy Mine scenario. The enemy of my enemy is a problem for later: In the mean time, they could be useful!
Yes, well, the commotion had died down (which was the whole reason why Delphine came out to begin with), so the sequence of events was more emerge -> see guys in Imperial and Stormcloak armor lounging around together -> must be looters moving in after dragon flew away!
The logic flow is pretty sound, and while the spot check WAS failed, depending on the position Saber was in at that moment she may simply have been in a spot that put it out of Delphine's line of sight. Happens to me all the time, so I have no trouble believing it.
Also, Enemy Mine? Go tell that to the guards that IMMEDIATELY aggro me over a goddamn Ancient just because I became a werewolf. What the hell, I'm helping you kill the lizard, you consider a werewolf more dangerous than a dragon? Okay, I know dragons are merely considered dangerous while werewolves are abominations of Hircine, but still...
(the worst part is that lore suggests this is actually in-universe attitude. Must have to do with werewolves being man-eating savage hellbeasts. Admittedly, dragons are just liable to incinerate you, werewolves are liable to rip your intestines out while you are still alive and chew on them, and all that...)
The woman walks her ass out of hiding about five minutes after the dragon apparently leaves and immediately attacks the people she finds out there! Even if they were bandits or deserters, they are there, the dragon is not, she shouldn't have cared who they were unless they pulled weapons the moment they saw her.
That is a good way to get mugged, raped and killed. I don't know if you noticed, but bandits in this game can and will calmly walk up to you and then mug you out of nowhere. Hell, one NPC even outright advises to not waste time reasoning with them and kill them outright because they will otherwise kill someone ELSE.
To Delphine their presence was basically the gods adding insult to injury - first a dragon, then not even 5 minuted after it leaves, looters already. Frankly, her going homicidal is understandable. She has to deal with Thalmor assassins out of the woodwork, there's dragons on the loose, and I'm guessing she decided 'I don't have time for this shit' and chose the quickest solution, ie slaughter all the 'bandits' (something that had Saber not been there she'd have been entirely capable of doing, by the way, woman can kill a dozen Thalmor Justicars all by herself without even a minor wound) before they can do any damage.
"Kill them all and let the Nine sort 'em out" is a valid approach when the situation is already bad as it is, and you don't want random bandits making it even worse.
I don't even like Delphine, but I feel she is fully justified in attacking out of the blue. Bandits in Skyrim can't be reasoned with, nobody in Skyrim bothers to reason with them, the typical approach is to KILL them, and Delphine was doing just that in her eyes. That Saber wasn't a bandit and/or did good deeds is irrelevant - Delphine didn't see her do any of that, Saber is a complete unknown, and she's in dubious company at best.
That's overlooking how only looters would have the balls to move in a smoking wreckage of a village so soon after a dragon attack, normally, since they'd be in a haste to grab anything not nailed down and leave before the army comes. And there was no word of a large amount of Imperials and Stormcloaks close by too - General Tullius wasn't supposed to stop in Helgen, he decided that on the fly to screw the Thalmor over, so such a large amount of mostly unknown men wearing Imperial and Stormcloak gear, under most circumstances, screams 'bandit'. And since the typical way to GET said gear involves slaughtering the previous owners... yeah, that would make them potential mass murderers in addition to bandits.
However you look at it, the most sensible choice just in case is to kill 'em. If it turns out that was a mistake, well, it sucks, but in the particular war setting Skyrim is in, it's probably the safest choice, although not very moral.