Locks tend to be "Grinder-proof" or "Cut-proof" - I have never seen a lock which resists both. If you have, please do provide links. Locks using new materials like this for instance, apparently resist grinding but not cutting (or vice-versa).
'Or'
Looks like you're splitting hairs there Guernay. And such vids are easy to locate so why not go look for yourself. Im not here to hold your hand and pat you gently on the head saying 'There There'
I've seen a number of grinder proof locks advertised and tested in vids on you tube, so there is your starting point.
I suspect the lock is a combination of this new outer material over a solid steel core. The outer coat rapidly wears out cutter discs, the steel bar inner against things like bolt croppers. But we already know that the majority of big D locks are pretty much impregnable to croppers, you need 5' long cropper to get through a thick D bar, along with the strength of Samson.
So a combination of the two should make then damned near cut proof.
Of course many of these tests are carried out in a safe environment, not in the middle of the street where you have the risk of the cops turning up or people phoning them and then turning up or CCTV.
So the majority of the time, probably 95% of the time, they're going to be impervious to attack.
Looking for a couple of percent of the time to win an argument, ignoring the main points, isnt a conclusive argument.