eli0s I understand what you say, that video looks more like a proof of concept, but think about 2.5D or isometric (orthographic). It would be possible to create games like Fez or Super Paper Mario.
Construct 2 helped me to learn how games are made, but the HTML5-only exporter is not really working out for me.
I started moving to Fusion 2.5 . Is uglier, not as intuitive as Construct 2, and some plugins are not compatible with all platforms, but it exports exe/apk without the "joy" of using 3rd party services and without adding 50~90 MB to your 5 MB game. Also, the development of Fusion 3 looks promising.
The announcement of GMS2 also got me interested. I missed the video, but from the reddit page I understand that they are improving the bad sectors (room editor, overall GUI, better image editor, drag end drop) and add a visual scripting to help the beginners.
I have both GMS and CF2.5 from the bundles (both were less than C2's sale price)