What they're showing is NOT gribbines. Gribbines is rendered chicken fat (schmaltz) with bits of chicken skin in it. The chicken skin crisps up during the fat rendering process, and the whole thing is used as a spread on bread, matza, or kichelach.

What they're showing is something where the chicken fat is mixed with flour to make some kind of crunchy snack-type thing - something like the coating on schnitzel without the chicken inside of it. I've never heard of it before, but it's something other than gribbines.