Why is Miig suspicious of the two men that French can see from the tree top?

On their way, the group finds evidence that other people are camping nearby. Frenchie climbs a tree and spots two men, one wearing camouflage and another in a red hat. The group decides they will catch up with the men, since they cannot avoid them and feel an obligation to see if they need help. But from the outset the strangers are suspicious. Wab insists they are the same people she saw in the woods, including the man who turned her over to the Toronto gang. They show few signs of trying to hide: they have built an open, visible fire in the early evening. They leave a conspicuous trail of trash along their way. And when the group approaches their campsite after three days of walking, the men fearlessly call out to ask who’s there.