<copyright>element indicating that there is no copyright and the software is dedicated to the public domain or should the
<copyright>element just be ommitted?
I'm edited the original extension to include this dependency (KB2919355). This means packages which depend on this extension will need exempt right?
Yes that is likely.
I was trying to say if there is another, maybe better way, I would go for that, in which Verification exempt is not required.
Okay, Got it. Unfortunately at the moment there is not. The reason is that we support back to Windows 7 / PS 2 so we test on a system that has no updates installed so we can make sure that we don't miss any required for a package. Once Windows Server 2008 is no longer supported on Azure this will likely change.
There many not be many users needing them. There are several Nvidia GPU packages available.
As I suggested previously, create one if you need it. You can get help here or in the docs. The Chocolatey Community Repository is maintained by the community. The Community Maintainers are all volunteers and create packages they perhaps need or others have requested. Pick up the one that was mentioned above and be part of the community.