People in the cubing community often call all twisty puzzles "cubes".

In this parlance, the "pyraminx" (regular tetrahedron twisty puzzle) is a cube, the face-turning octohedron is a cube, and the "Megaminx" (dodecahedron) is a cube. I've even heard Rubik's Clock[1] called a cube.

[1] Which isn't even a god-damn platonic solid https://en.wikipedia.org/wiki/Rubik's_Clock

That is a puzzle thing. The word cube is used very loosely. Douglas Hofstadter wrote about it back when Rubiks Cube was still new.

In this case it is a stretch, but the Rubiks Cube inspiration is so clear, that I think it sort of makes sense.