Yeah, 2.4 is really interesting, and it's been dismissed by the SC community (& YT Lawyers) as a non-compete clause. Which it is. BUT the key for me is the OR between selling OR licensing. So the question is: are CIG in the business of developing, supporting, OR promoting a competing game engine? Clearly the answer is yes to some if not all these points. At the very least they are now promoting LY.
I'm sure that there's enough ambiguity in the GLA to necessitate a court appearance. This won't be going away any time soon.
Curiously, SC Reddit seem to have completely ignored the Skadden response.
If you want to assume that this can be extended beyond a simple non-compete clause, and that the "indirect" aspect catches them...
...then CIG are promoting LumberYard by displaying its logos (instead of CryTeks) and appearing in videos.
...It might also be said to be developing LumberYard if they share their code with Amazon.
...they have licensed LumberYard which would be also against 2.4, and would support CryTeks assertion that "exclusive" means "exclusive"
...By enhancing their game engine through the development of new netcode and server code and AI routines etc, they are developing for a competing engine regardless of whether the code is shared with Amazon or not, and are arguably supporting it AND creating a need to maintain it. The clause doesn't mention anything about whether it is shared or not, whether the beneficiary is CIG or some other body - just that the act is performed. Similarly, because the GLA is not terminated, CIG are legally obligated by the GLA to display and promote CryTeks logos in game no matter what engine they use (indeed, that such a clause exists could even be said to support that the intention was for no other engine otherwise displaying the logos would be contingent on the engine being used)
2.4 - if you don't limit it to a non-compete clause - is fairly damning towards CIG. If CIG respond, alongside the RSI signature issue, I would expect them to hammer home the assertion that 2.4 is a simple non-compete clause.
I would still argue that the intent and purpose of this clause is primarily as a non-compete clause and that Skadden are extending its scope beyond what it was originally intended to do. But, as I said, with the "indirectly" phrase embedded, Skaddens argument is plausible.