Indeed.
It's not the end-result outcome that would be at issue, but rather the (lack of) level of detail and perceived arbitrariness in jumping straight to said outcome without any intervening play and-or opportunities for the players/PCs to change their situation (for better or worse!). Further, the jump as written assumes none of the PCs act independently (e.g. to try to escape, or to suicide-rush a guard to cause a distraction so others might escape, etc.) and that they are all captured en bloc.