We download, install and run scripts and binaries written in a variety of languages ALL of the time. This one's in Bash - even a child can sort of check it out. It is intentionally written in Bash and the code base is small (for this kind of project), so as not to obscure much.
Wait, 2 steps for the installation are too many? :)
On a serious note, I think it has been made clear this isn't intended just for Docker, but any other container engine too, potentially. And from my experience using it every day, it saves a ton of time. As opposed to regular Docker usage patterns. I just navigate to my project directory and type `dock`. There is no need for any external service, such as Gitlab or even Docker Hub.
Whatever you fear, finds you. If you're too generous, you will soon find it the universe decides you have too much. You can't improve yourself, because the part that is trying to improve itself is the one doing the improvement. To know something is to have power of it, generally, but what if the reverse is true? What if knowing something gives it power over you? Ignorance is our ammunition. The unexpected virtue of ignorance.