Is it coding based? If so, it falls in to a totally different market than Construct 2. There are loads of coding libraries out there - you still have to code, though.
That demo is as buggy as all hell, too.
Though, still kind of neat. I bet some folks will be all over it.
Develop games in your browser. Powerful, performant & highly capable.
Far more development with Html5 in its infancy, than there was for flash in its early stages.
Makes perfect sense with Html5 being a standard rather than a proprietary.