As a lapsed superconductivity physicist, I hate to burst the bubble. In the community there has been a long-standing joke about USOs, Unidentified Superconducting Objects, and it is well known that just because you see "Signs of Superconductivity" does not prove that something is superconducting.

There are really three questions at hand: 1> Does the sample show the Meissner effect, 2> Does it show zero resistance, and 3> Is it stable under addition of impurities. It turns out that for most ceramic compounds, even if 1 is true, 2 and 3 are often not true. For example, the Cuprates (the first to cross the 77K mark) actually have a higher resistance close to the critical temperature than copper. Point 3 is especially damning as sensitivity to impurities also means you can't draw these things into wires (certainly not wires you can bend) as the very act of bending may introduce defects that change local concentration of ingredients and hurt the superconductivity.

So the burden of proof remains very high, and the small blurb is very underwhelming.