Let me just say I am glad the Original Poster Posted the example of combat.
Let me also say that two groups of players can run the same scene, and come up with different actions/outcomes.
Let me also say that two GM's will rule differently on actions, and use the rules in different ways.
Now let me say, if both groups had fun. The GM's and Players did it right.
I just hope all these discussions about rulings, and meanings, are not happening around the table.
Afterwords, okay. During, NOT okay. Everyone is there to have fun, not rules lawyer.