100% sure that they aren't bandits anymore and work under the scumbag,that asked the elf queen in return to help the elfs, and they are doing tax collection in the old shitty violence style
Not to be the devil's advocate, but to me seems more likely that the mom hit him with the photo frame, not because he show "disrespect" to her, but more out of fear to saw her son, so angry against her for the first time. not gonna say that we should blindly forgive her.
@jbenj probabily his skills of detection trigger only when he could receive some sort of damage ( looking how even he is surprised how the sneak attack was weak) or are need to be manualy activated.