Why .img image format?

So you prefer using the .img format for persistence and ease of file creation.

Is it possible that a persistent Kick image is available.

could you summarize the technical challenges for creating an kick .img file?

You can build raw images as per:

See also:

How should a kick user proceed to create a persistent USB if there is an indication

of a system compromise?

Isn’t that a reason to have an persistent .iso available as a download?

It’s possible a user could have a compromised machine.

Some kind of documentation that assumes the machine is compromised.

It’s a technical necessity. I am not a huge fan of ISO images.

(Why? → Image Formats Development Considerations)

We don’t refer to it as “persistent ISO”. That’s a contradiction as per our definition.