Yeah, at a 2,000psi change, it blows my mind they had a kick of 45 Kips.
I would shit my pants if I saw that on the cellar deck of that platform.
I wish we could find out what guy decided to make that call. He is the one at hand for generating this mess, given that was the accident what happened. Even if there were ZERO issues on the BOP, it could not adjust to slow down that kind of pressure differential.