[adient]

You can use any CF tool over ssh, this is not unique to ansible. In doing so, you can also "push" to any CF tool. You can also push by using more integrated tools, such as mcollective with puppet.

[pessimizer]

You don't push to ansible, you push from ansible to a server that has never heard of ansible.

[njharman]

Given enough effort, you can do any 'X' with any 'Y'. The point is the design, future design, etc. all support that way and make it easy and robust out of the box.