I think folks are getting hung up on "non-cuttable". That just means you can't remove material in a typical way with a cutting tool that shears off chips of mat

I think folks are getting hung up on "non-cuttable". That just means you can't remove material in a typical way with a cutting tool that shears off chips of material (a saw, grinder, drill bit, etc). They're not claiming it's indestructible-- just useful for certain scenarios.