I think it’s not right to blame teachers, because you cannot control that right? Agree it’s far too hard to find aspirational teachers, but they are naturally in demand and will be snatched up by well paying positions, like private schools. The tool is supposed to help given the current suboptimal teaching practices.
Teachers claiming to be self aware such they don't care and are just there for the benefits can absolutely take some blame
They could quit and free up the slot for someone who does care