She was in Star Trek Beyond though.
Actually the entire having to jump into space without a space suit was what reminded me of The Expanse more.
Regarding Nurse Chapel almost dying - this is one of the TV/movie tropes that I think is such a cheap and terrible device and I am tired of it. Discovery was full of these scenes where they make you believe a main character really almost died, only to survive after all, and having their crew mates weep for them (I am looking at you Burnham). There are much better ways to create good drama.
In one of the panels Anson Mount was saying that if you think the Lower Decks cross-over episode was the craziest thing they’ve done for season 2, we would be surprised what else to see, so yeah, I think we are in for a good treat.
If you haven’t seen it yet I highly recommend Rowan’s Star Trek Retrospective series… That’s how his channel became famous.