As the Fighter/Swordsman role, Zoro indeed have to be the premier and the benchmark of battle related stuff. Him unlocking CoA and CoO in Mr. 1 fight is makes sense and more people should know about this.
And not trying to rain on your parade, but those scenes are normal CoO operations, sensing and predicting.
If it were FS, the image/panel shown will be about the end result (rubble crashing), not about the ongoing event (rubbles falling).
The predicted event shouldn't have started too (rubbles should still be in the air), not ongoing/already happening (rubbles falling).
For example, see Luffy Mihawk Marineford scene. The panel shows Luffy's arm cut off (end result) while Mihawk not yet slashing him (event haven't started).