So Luke flat out kills thousands of people when he sinks a mining town. And it's this moment where almost everyone turns on Luke, telling him how this is largely, not entirely, but largely his fault.
And it is, but it's also their fault as well! Tear and Jade, and maybe Guy clearly knew more than they told the rest of the party. Luke is an idiot, of course he was gonna trust Van!
If anyone of them had maybe just talked to the group about what they thought, the entire issue might have been adverted. Tear clearly knew Luke was a replica. Maybe if Tear actually told him, boom, town saved.
