Lol yes, even I didn't expect a polyhedron to escape the matrix, I tried to reciprocate the experiment myself without knowing the way they did it, but I lost hope midway.

Its facets, angles, and combinatorial structure are crafted so meticulously that in every possible orientation and cutting plane, no hole large enough for an identical copy can be formed without breaking the convexity or going outside the polyhedron.

Then I realized "Hell no, they were checking a finite (but vast) set of possible “Rupert holes" on computer and I'm being stupid doing it by hand"