I disagree. If you focus on holding the software creators to account in lieu of the humans in the loop, the we only reinforce the behavior of offloading thinking to the system.
If I am a cop in another jurisdiction and I see that in this case of error, the facial recognition company was held to account but not the police or municipality, I will be more likely to blindly trust the software assuming that they either patched it or will take responsibility.
We should demand accountability for both.