We actually planned to make a game a couple of years ago, but we simply didn't have time. That hasn't changed. A serious game can take years to design, develop and release, and we would basically have to put Construct development entirely on hold during that time. I don't think anybody really wants that.
I'm not convinced there are many benefits to it, either. Despite what you may think I am listening and do pay attention to everyone's concerns here. It's just there's not always a lot we can do. If we were making our own game when we saw the Chrome update that broke v-sync, there's still not much we can do beyond file a bug report with Google, and it is not going to cause me to have an epiphany that we should go and make a native engine, because our experience with Construct Classic's native runtime has shown us it's not necessarily any better that way.