I can’t say that I’m real crazy about that guys form. He’s got a short ROM and no time under tension.
Unlike many people, I do like shrugs for traps, but I put them at the end of a workout. My form is a lot tighter, with a pause at the top. On the days I work traps, I deadlift first, then hit 3-4 sets of heavy rows and finish with barbell shrugs. I usually work up to 3 or 4 sets at 365 or 405 for 6-8 reps.
It’s less about the weight, and more about feeling it in the traps for me. Occasionally I’ll finish them with some shrugs on the standing calf raise machine.