Would like to ask on predecessors, with software packages for... Docker suit?

Now write good program is done with the installation package (InstallShield, Visual Studio Setup Project) provide to others,
Proposed recently packed in Docker program, some people can not help but let me think whether doesn't fit,

My understanding is encapsulated with Docker, advantage is to provide a clean environment,
But it also has the original computer users have installed Docker, customers themselves will use Docker,

Traditional installation package form is the next step of the brain,
Execute the program shortcut on the desktop and click to open, a user

Want to listen to see everyone's way of thinking, thank you:)