The paper concludes that this is a superconductor merely by doing a resistivity measurement, and then applying a magnetic field to see if the resistivity increa

The paper concludes that this is a superconductor merely by doing a resistivity measurement, and then applying a magnetic field to see if the resistivity increases. This is not a sufficient nor convincing measurment to demonstrate superconductivity. I mean, maybe this is a real superconductor, but they havent demonstrated convincing evidence of it, and their peer researchers hold similarly low standards, so they will likely not be held to account.