If you are targeting strictly mobile then the question is why did you go with HTML5 to begin with? That is the real question for anyone that is developing games. HTML5 is great and flexible but it is not the ideal platform for mobile games. The fact that it can export to them (Via third party exporters and wrappers) does not make it ideal for mobile. I love C2 for what it does, but for larger mobile games there are frameworks like Unity which work great. But they also do not allow you to just drag and drop.
Knowing your target platform and the limitations of the different development options are very important before trying to start any project which has a goal of being published for money. I have C2 for some of my projects and Unity for others. C2 gives a great balance of price vs. value. If you want a platform that is more tailored toward mobile than C2 you will need to either learn to program, or spend more money. There is always a trade off. Pick your poison