The blade is belt finish, but there are belt finishes and finishing belts. Farid's looks like 60 grit, maybe 120, but looks coarser to me. That isn't a working finish, that is just unfinished. Certainly, it does keep £ cost down, but at a cost. Harder to keep clean, more likely to crack, more likely to corrode. Might hide scratches better.
The steel choice and hardness is interesting. Most of us are somewhat familiar with D2. Known for being semi-stainless with around 12% chrome and 1.5% carbon, with a lot of large chrome carbides making for a toothy edge that lasts a long time, a bit harder to sharpen, and not fond of low angles.
D6 has 2.1% carbon with the same chrome content. Knowing Farid, he won't have chosen it because it has better edge stability. He will have chosen it because the carbon gets used to make even more carbides. Fantastic if you are field dressing big game. Rather wasted if you are carving wood. Lower hardness helps with sharpening...also with chipping of low stability, high carbide load steels at lower angles. Seems like a compromise for the steel, rather than optimised.
Like I said, give me AEBL at 62HRC with a 600+ grit belt finish over D6 at 58HRC and a 120 grit finish. I am cutting wood, not skinning boars. If I WAS skinning boars, I would be interested in the Farid blades for sure.