I think few umpires have this interpretation. My daughter has the privilege of batting in front of one our monster lefties and has been hit by her rocket line drives and ground balls more times than I can count. These are balls that have flown by the first baseman playing in and hit hard enough that no second baseman has a chance to field and she is always called out. I've always understood the rule as you state it here but never get it called that way.You simply cant grasp the concept here. No, the runner will not always be called safe just because F3 and F5 are playing in front of the base. You are so dead set on the call was wrong you refuse to understand the rule. The rule says if the ball has passed an infielder AND no other fielder has the opportunity to make an out...….. Who exactly had an opportunity to make an out in your play? F3 was playing in and apparently the ball was hit to the 2nd base side of her, and by your own description of the play F4 had abandoned her normal fielding position to cover 2nd base on the steal. So exactly what infielder was going to field the ball????? If the umpire judged F9 had no opportunity to make an out the call was absolutely correct.
You simply cant grasp the concept here. No, the runner will not always be called safe just because F3 and F5 are playing in front of the base. You are so dead set on the call was wrong you refuse to understand the rule. The rule says if the ball has passed an infielder AND no other fielder has the opportunity to make an out...….. Who exactly had an opportunity to make an out in your play? F3 was playing in and apparently the ball was hit to the 2nd base side of her, and by your own description of the play F4 had abandoned her normal fielding position to cover 2nd base on the steal. So exactly what infielder was going to field the ball????? If the umpire judged F9 had no opportunity to make an out the call was absolutely correct.
No I am saying the ball HAS NOT PASSED AN INFIELDER therefore it is irrelevant that no other fielder has the opportunity to make an out. If F3 had no play on the ball because it was hit hard to where F4 should be/normally would be when it hits the runner it hasn't passed an infielder when it hits the runner going from 1st to 2nd.
If I am wrong - and you are going to say the ball 'passed an infielder' - i.e. F3 who never had a play on the ball - under your interpretation a hard hit up the middle that SS or 2B had no chance to catch or field but hits the runner going from second to third is not out/live ball because it has passed an infielder (either F3 or F5) and no one had a chance to make an out (catch/field/whatever). Are you saying you are not going to call that an out?
"Passed an infielder" is meant to refer to an infielder actually having a chance to make a play but missed the ball completely (which is why the rule excludes the pitcher). It isn't meant to refer to someone not involved in the play. The 'opportunity to make an out' is there to cover a second fielder who has a chance to make an out off a deflection or completely missed ball but can't because it hits the runner.
I have found 1 case play in NFHS that talks about no fielder having an opportunity to field the ball.
NFHS 8.6.12With R1 on second, B2 hits between F5 and F6, both of whom are playing close for a possible bunt. The ball touches R1 and deflects to foul ground. F5 and F6 were in such a position that there was no chance to play the ball. Ruling: If R1 accidentally touched the ball, it is ignored because the batted ball passed a fielder and no other fielder had an opportunity to make an out. If R1 intentionally deflected the batted ball, the umpire shall rule interference, the ball becomes dead, R1 is declared out and B2 is awarded first base.