Just a background CocoonJS is a fast integration tool to build Android and IOS applications using html5 or through its own version of native canvas. As of Construct 2 it is a 2D game engine which promise a zero coding environment for developing games. Zero coding for game development is a great treat, but no coding doesn't mean no basic programming logic. I believe what makes Construct 2 great is how easy it is to make simple games, there are also tons of sample games and a good community behind it.
Cocoonjs and Construct 2 used to be tightly integrated but unfortunately due to the difference in priorities Construct 2 needed to drop the support. I think the decision was good since the pressure of the updated plugin should fall under Ludei instead of Scirra. This also means that updates from Construct 2 will be more focused in improving the game features rather than providing support for third party applications.