Yeah, I totally agree on this one. It doesn't feel like D&D. Well, it feels like
bad D&D with a railroading DM. If the scene played out in initiative instead of in scripted dialog, that outcome is incredibly unlikely. Forcing it in the script after a failed roll (that's probably pretty high difficulty) feels, well, forced.
See
https://forums.larian.com/ubbthreads.php?ubb=showflat&Main=90360&Number=691001