tgeorgemihai I totally agree with you! Unfortunately all the engines have their own faults at the moment.
Construct 2 has the best IDE + workflow, but has major lacks regarding export.
CT Fusion 2.5 exports native apps, but the IDE is very badly out dated.
GameMaker has good export options, but requires scripting and the editor is outdated.
At the moment it seems like both CT Fusion and GameMaker are improving with those issues.
Probably Scirra should be concerned if Fusion and GameMaker come close to Construct regarding usability and they have better export options.
I have to say that I'm willing to pay good price if I get usability close to Construct and better export options.