I don't have the patience to listen to 32 minutes of stuff. Do you have the Cliff Notes?
EDIT: Just realised I gave the Cliff Notes to DMShort's "Every Insider Leak I've Been Given..." not the Chris Cao interview. To be honest it is probably more relevant. As his interview was about MtG Arena that had just come out of Beta.
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The Execs at WotC particularly Chris Cao don't understand D&D (Chris Cao doesn't even play), they want to turn it into a 3D digital platform that can be a single player or co-op player experience without the need for a DM. But they fear anyone could copy their Unreal Engine 3D digital platform with the current OGL. They want to kill Roll20, Foundry, and other VTTs because they are competitors in this digital space, to do that they need to destroy the OGL. Most of this seems to be coming from
Chris Cao who sees D&D gamers as the same as Farmville players, he seems to be planning to monetize D&D with microtransactions for 3D models, skins, spell effects, etc.
Currently D&D makes about $150 million a year they want to turn it into a $1 billion dollar brand like MtG. They aren't going to do that selling books, and it seems if they have to kill what D&D currently is to make it a billion dollar digital brand, they are happy to do that.
There is a real disconnect between the design team at WotC that don't like what is going on but have no power, and the execs that have the power but do not understand D&D in it's current form and want to turn it into a video game.
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IMHO Chris Cao's vision of a D&D game has about as much in common with a real D&D TTRPGs as the D&D Movie has. It's D&D in name, it's D&D in some of the tropes and features, but it isn't D&D.
Seems to me the OGL 1.0a was written specifically do prevent what Chris Cao wants to do with the brand. However it's a legal document so it is only worth anything once it gets tested in court and who's willing to face Hasbro's lawyers over it?