Why do deployments with CodeDeploy to ECS (fargate) without tasks succeed?

I wanted to test whether Codedeploy can be deployed without ECS tasks, so I tested the ECS service with the task number set to 0.

Contrary to expectations, CodeDeploy was successfully deployed with no tasks.

If it was successfully deployed, it means that the content was properly distributed to the task. I wonder why it succeeded in the absence of the task.

Below is the codedeploy result.

ECS image01

ECS image02