I suppose you could say that, given Cas is now claiming to be the new God of everything, that'd probably include machines!|
It wasn't really though, we knew what he was going to do, and when. It's just the fact he did it off-screen. "Oh yeah, I did this AWESOME thing and became super-charged! I am the new God! What did it look like when I opened a portal to Purgatory? It's a secret. Shhhh!"
Oh for goodness sake, I've caught my scrotum in my zip again - Margaret Thatcher, 1986