I think the lost boys in this sense are the ones working for Peter Pan like Felix not the boys PP keeps prisoner.
Ah, OK! I’ve always had a distinction in my head between the Lost Ones and the Lost Boys. Whether or not that’s actually the case, we dunno, but the Lost Ones don’t seem like the type who cry out for their parents at night. So when the scene summary said “Lost Boys”, my mind went to the innocent prisoners, and how pissed PP would be if Rumple freed them.
We need video of the scene to know exactly what was actually said. Unless angiebelle remembers?