If you want the technical rather than the people, then the video says:
- The "Linux level" source code is not available anymore (wrong, it's in AOSP source).
- That since hardening is done in the Linux kernel, we can't do that anymore (lie, it's more than the kernel, and wrong)
- GrapheneOS cannot do complete builds (wrong, you wouldn't have an OS to boot if so), and can only use outdated drivers (lie, we updated drivers to Android 16 release versions and will continue to)
- USB-C port control is "Linux level" (implying it doesn't work, this is wrong. Go update to Android 16 and use it.)
- Since the "Hardening claims of GrapheneOS are tied to modifying Linux source code for Android then that claim can no longer be possible moving forward" (lie) "...It would seem that those interested in Android hardening will have lost a choice" (nope)
- "Now the days of GrapheneOS for Pixels may be numbered." (Lie)
- "...They can keep going with the source code for Android 15, but going forward it becomes more difficult." (Wrong. AOSP 16 is open source.)
- "Community developers, though, who are interested in helping a larger pool of people can still be able to contribute to an Android hardening project, just on a different device." (We are literally doing this)
- So, the future is still open. If you want to port your AOSP project to a Brax3 or any future device we make then you are welcome and feel free to contact the team at braxtech dot net" (advertising his device, no)