I see what you are aiming at, but the conclusion of clinical trials is almost never that simple. Drug A works better than B is a matter of statistical significance, of patient selection (history, previous treatments, genetics), and you can still register, nowadays, drugs versus placebo as comparators. So the issue of comparing two drugs together remain where no clinical trial to compare them in parallel exists. So you'll end up in these situations with : "Drug A works better than Placebo on X population" and "Drug B works better than Placebo on Y population", and the poor layman will be left on his own to understand how the X population is different from the Y one, and what to make of the results when it comes to comparing A and B.
In other words, it won't help laymen in the end.
At one point, if you really want to understand the clinical trial results, you need to go in details, and laymen won't be able to do that. So I'm not sure what they are trying to accomplish here.
Plus, you don't need that laymen language in the first place. Isn't that the job of journalists who cover scientific discoveries ? I'm afraid we hit another hurdle here, with the deplorable state of clinical trials results reporting in the general public by the media. That says a lot about what you can expect from laymen in terms of scientific comprehension.