Unless he did some clever mime I'm not remembering, I don't see how you are getting "Cas was the intended object, Dean got sucked in" out of this:
CROWLEY Not to worry. I have a small army of demons outside. Cut off the head, and the body will flounder, after all. Think if you'd had just one king since before the first sunrise. You'd be in a kerfuffle, too.
SAM Which is exactly what you wanted.
CROWLEY So did you. Without a master plan, the Levis are just another monster. Hard to stomp, sure, but you love a challenge. Your job is to keep them from organizing.
SAM Where's Dean?
CROWLEY That bone... has a bit of a kick. God weapons often do. They should put a warning on the box.
SAM Where are they, Crowley?!
CROWLEY Can't help you, Sam.
CROWLEY snaps his fingers and the two DEMONS who accosted MEG appear on either side of KEVIN.
CROWLEY Sorry, Sam. Prophet's mine.
CROWLEY snaps his fingers and KEVIN and the DEMONS disappear.
CROWLEY You got what you wanted – Dick's dead, saved the world. So I want one little prophet. Sorry, moose. Wish I could help. You certainly got a lot on your plate right now. It looks like you are well and truly... on your own.
Cas is mentioned nowhere except that Sam says "they" the second time.
Re: Please explain this to me like i'm five
CROWLEY
Not to worry. I have a small army of demons outside. Cut off the head, and the body will flounder, after all. Think if you'd had just one king since before the first sunrise. You'd be in a kerfuffle, too.
SAM
Which is exactly what you wanted.
CROWLEY
So did you. Without a master plan, the Levis are just another monster. Hard to stomp, sure, but you love a challenge. Your job is to keep them from organizing.
SAM
Where's Dean?
CROWLEY
That bone... has a bit of a kick. God weapons often do. They should put a warning on the box.
SAM
Where are they, Crowley?!
CROWLEY
Can't help you, Sam.
CROWLEY snaps his fingers and the two DEMONS who accosted MEG appear on either side of KEVIN.
CROWLEY
Sorry, Sam. Prophet's mine.
CROWLEY snaps his fingers and KEVIN and the DEMONS disappear.
CROWLEY
You got what you wanted – Dick's dead, saved the world. So I want one little prophet. Sorry, moose. Wish I could help. You certainly got a lot on your plate right now. It looks like you are well and truly... on your own.
Cas is mentioned nowhere except that Sam says "they" the second time.