I don't understand the argument that bad scenarios are horribly detremental. Nobody forces anyone to play ANY scenario. If a scenario is bad, don't play it. We already have a few decent scenarios, but hardly any scenarios at all relative to what we should have.
If you are so averse to playing poor scenarios, do not play them. Read the reviews on Spiderweb and the Lyceum to make an informed decision about what to and not to play. No harm is done unless the harm is inflicted upon yourself. There can be no net harm with bad scenarios.
Here is the deal. I do not have much time for much scenario design anymore. Seriously, any tool to make the process easier would increase the rate at which I can release a scenario. This may sound self-absorbed, but I see that as a net positive to the community.
Arenax -- There are people out there who have a different skill set than you. You might find certain things easy, other people do not. Better tools will allow people to overcome their limitations and be able to write things comparatively well. Remember that most people are visual learners.
Furthermore, what I find ironic is that you seem to be the expert (in your mind) on making a good scenario when you have never actually made anything like it. Sure, you can program, so can I. You can probably even program better than I can because of my inherent specialization. Nonetheless, you yourself admit that there is a different skill set for writing scenarios. I just don't think you realize what it is. I speak from experience in saying that excellent coding skills is not it. Most of good scenario design is utter tedium. Only in a few places does advanced coding become supremely important.
See past yourself and your selfish notions and realize that people will benefit from a more visual and intuitive tool. So what, it masks a few things? That's fine. People still have the option to move away from the tools to a more advanced raw tool and they inherently will if they want their scenarios to be better.