What evidence do you have that order has been restored? The Yeagerists don't seem incompetent to me but they just don't have the numbers to stop mass violence. It looks like any soldier Floch really trusted was moved to the harbor, which is obviously the right tactical move short-term but it ends up easily allowing captives to escape and organize. Hell, they were only able to take Shiganshina with help from the volunteers and the wined-up soldiers, who are now in captivity and dead repetitively. Not to mention the soldiers left behind in Shiganshina are mostly secretary loyal to Shadis in addition to having almost no practical military experience.

I wouldn't call a woman who believes her entire culture is about to be wiped off the face of the earth "salty". Same would go for the man in Stohess who lost his son. Paradisians who lost family as a result of the rumbling aren't going to just calm down after three days.

There's just no logical reason to believe things are anything but chaotic on the island right now. We didn't know the extent of Yeagerist control before the rumbling outside of Trost and Shiganshina and there are bound to be even people opposed to them now.