Why is my signal not connecting? Is "for loop" to blame?

Godot Version

4.2

Question

Why is my signal not connecting? Just because I used a “for loop” to instantiate my scenes? Here’s a post where I left all the info needed (I hope):
https://forum.godotengine.org/t/how-to-connect-a-signal-to-an-instanced-scene/51909/1