At the rug-rat level the umpire should be yelling IF - BATTER IS OUT BATTER IS OUT so the defense knows to simply ignore the BR.
For shaven players they should know better
Here is another example to prove my point
1 out R1 B1 K's but we have a DK3. The batter runs to first base and F2 makes a play and air balls the ball into RF. That's on the defense they should know with R1 and less then 2 outs the batter is out regardless if we had a DK3 or not.
Same situation here
Pete Booth