Understanding event loops and action blocks

I thought I understood how C3 runs actions, but looks like I don't so I want to confirm with the community...

Here's my code. I was expecting the highlighted action block to run 15 times, i.e. once for each enemy, meaning the counter would increment to 15. However, when I run it the counter only increments to 1 but all 15 enemies have their health set to 0. Can someone please explain why it works like this?

I'm not trying to do anything in particular with this code example, I'm just trying to understand how C3 executes events/actions in general. I was expecting event 3 to work like this:

for each enemy whose health is > 0

1. increment enemyKillCount by 1 (would be executed 15 times)

2. set that enemy's health to 0 (would be executed 15 times)

But instead it seems to me that C3 is evaluating/executing event 3 like this:

if there is at least one enemy whose health is > 0

1. increment enemyKillCount by 1 (would be executed 1 time)

2. for each enemy whose health is > 0, set their health to 0 (would be executed 15 times)

Is my understanding correct here?