I wouldn't go so far as to say its fascinating, why, because armed with this knowledge what are we going to do with it. Send someone to a neutron star's surface to collect samples and bring it back? I think not, do we have any type of capability to simulate the construction of such matter on earth, no, so knowing this information gives us, nothing whatsoever.
IT doesn't really take a genious to realise, the denser the matter the tougher it would become to break/penetrate, knowing a neutron star is incredibly dense its pretty obvious its stronger than anything we have hear or could possibly hope to create, knowing the exact maths/numbers behind it and knowing how much stronger it is than stuff we can use really doesn't help us at all.