Yeah, looks to be the case. I just read up on this tribe a little. They don't eat human meat. They do mix the cremated bones of their dead into a banana soup and consume that. The meat is consumed by wildlife in a natural decaying process. It doesn't even make it into the flames.

An actual cannibal tribe, after capturing an outsider, would be more likely to kill the captive and he'd BE the feast - not invited to it.