She means that the suit wasn't actually featured in the finished film, Jenga. It's a "technically, she's correct" thing.
Anyway, these are looking pretty good. The only thing that slightly waters down my excitement is how static the Covenant xeno’s face looks in that clip. I got the impression that the suit was made as a stand-in with the intent of completely covering it with CGI.
That's because it's not a hero head. We've known for some time that all the suits were done with the knowledge that a lot of them would be removed and replaced with the CGI Alien. I know Odd Studio talked about this particular suit when it first showed up on Corden's show and I'm trying to find the quote now.
Got it, it was something Adam told me in chat and I mentioned in the post. It was a stunt suit.