It's really important to note that the error correction test and the random circuit test are separate tests.

The error correction is producing a single logical qubit of quantum memory, i.e. a single qubit with no gates applied to it.

Meanwhile, the random circuit sampling uses physical qubits with no error correction, and is used as a good benchmark in part because it can prove "quantumness" even in the presence of noise.[1]

[1] https://research.google/blog/validating-random-circuit-sampl...