Optimus could do really well if they had all the smartest robotics engineers working on it...
But it seems that ~80% of the smart people I know refuse to work for Musk on principle, and the remaining 20% prefer to work somewhere that pays well (Musk companies do not).
End result is he has a team of mediocre engineers working on it which is why their demos appear years behind some competitors like Boston dynamics and Unitree.
I think the same is happening to Tesla cars (not much innovation in the last few years).