Interesting that the video of levitation isn't mentioned at all in this rebuttal.
Assuming the scientists acted in good faith and this isn't a complete scam, maybe we found something else that doesn't conform to our current understanding of superconductors, but does levitate over a magnetic field at ambient temp/pressure.
One response to the levitation video is that it is hard to distinguish from a non-superconductive diamagnetic effect, which can occur even in not very exotic materials.
There are videos of graphite levitating that are circulating, for example.
Assuming the scientists acted in good faith and this isn't a complete scam, maybe we found something else that doesn't conform to our current understanding of superconductors, but does levitate over a magnetic field at ambient temp/pressure.