The hardware should be best-in-class due to the massive amount of channels (over 1,000), and the fact that each channel is surgically implanted into the head. For comparison, 16 channels is on the high end for consumer-grade BCI kits, and each channel is a sensor that rests on top of the skin.
As far as why they aren’t making use of its capabilities to do something more impressive, I don’t know.
For what I would consider a more technically impressive presentation, see this video of a man controlling two prosthetics in 3d space to slice bread.
The hardware is impressive — it’s best-in-class, but the presentation was mostly theatrics. We’ve had brain-computer interfaces for cursor control for 30 years (pong can be reduced to 1D cursor control — it’s even simpler than the first task).It’s just a lot cooler to the public when its Musk getting a monkey to play a video game.