This really depends on the failure modes. In general, humans fail in predictable, and mostly safe, ways. AIs fail in highly unpredictable and potentially very dangerous ways. (A human might accidentally drop a knife, an AI might accidentally stab you with it.)
It might still be a little slow (I'm not sure if the 16 seconds to compute an action is fast enough for commercial use cases), but this is definitely exciting and seems like a great step forward.
Work that was once done by 10 humans can now be done by 10 robots + 2 humans for the 20% failure cases, at a lower total cost.