I don't have the book handy but I'm pretty sure the big guys are all Characters at best and not ICs.
I think he's referring to the second question on the Errata page. I.e. summoned FMCs can now declare if they're swooping or gliding when they arrive, whereas previously I believe they were forced to swoop.Do Bloodthirsters have the Independent Character rule? I thought most big Daemons were just Characters.