I have had players in my group who run into the same mental blocks. I think the players who focus on the rolling of dice are really trying to ask “How do I win?” “How do I hack the system?” They want to know how to master the game using mathmatics and loop holes. Same situation with those who bend over backwards to stretch a move into their characters strong points.
I’ve tried (and mostly failed) at trying to enlighten them into the idea that a failed roll does not mean failure, and that our goal in playing isn’t gain XP or improve stats written on a sheet. IMO some of our best session time didn’t involve dice. You can lead a horse to water….