It’s AGI. So far everyone’s track record is nonexistent.
If you want "AGI" so badly, you certainly need to have an "AI research" background and a track record. Can't achieve your "AGI" without that.
Given that Carmack has a close to zero track record in this research, it makes total sense for him to partner with someone that does.
Can I ask, what makes you so confident on that? For all I know (which is admittably not much), current AI may be going to a direction completely orthogonal to achieving AGI.
https://aeon.co/essays/how-close-are-we-to-creating-artifici...