This has been discussed.
One of the matters with CO2 is that commercial scenarios, maps, and estabs are available for cloning into modifications.
That may be the only way for a novice scenario designer to get a first (and quick) result, though: modifying stock scenarios helps to understand the do's and don'ts when placing objective circles and setting their priority levels etc., and when creating proper reinforcement schedules. Once these basics are understood, then a novice can use the map maker and create his own unique/historical/what-if content.
For instance, I added the bulk of the Pz.-Lehr-Division and a formation that almost amounted to the size of an INF divison to the German reinforcement schedule in the original Arnheim main scenario of the original HTTR, back then, while adding 1 or 2 divisions to XXX Corps, to spice things up and make the scenario more challenging. I did the same with the Nijmegen scenario (which was the scenario with the highest number of troops already, even before i altered it, as the stock scenario contained 200+ units), and it turned out to be an extreme challenge and heaps of fun.
If a novice starts a map from scratch, he will then struggle the most with the elevation layers, most likely, and it will take a lot of trial and error or even studying some forum feedback to get proper results and to translate the elevations from a paper map to a proper amount (and increments) of elevation layers in the map maker, even if he has historical or modern elevation maps at his disposal. If community designers can import GIS data, there might be less need for cloning and modifying and designers can focus on eye candy and historical accuracy (like historically accurate road networks, proportions of villages and woods and alignment of fortifications).
I'd hope the encryption wouldn't limit that option, but instead would prohibit a person who clones or modifies data for a commercial scenario from using the original scenario's / map's / estab's name for their work.
Do you mean a commercial scenario or module that's slightly modified and offered by a third party (or user) that's not affiliated with Panther?
I don't see something like that coming up anytime soon. And even if so, small modifications in the game engine and scenmaker via update could then deny widespread usability of such content, in addition to Steam's or LnL's legal measures.