Ironically, on the play cited here as evidence of Rousseau's underrated ability to "bend around the edge to get sacks," he doesn't really bend AT ALL. He is objectively, comically upright, in fact, given the claim this example is meant to illustrate. Rousseau beats the RT to the outside, sure. But not with any dip or bend, as advertised.
No clue if that's a trend in his "tape," or just a poorly chosen clip.
Does Rousseau have the get-off, body control, and ankle flex to bend the edge? I hope so. Would love to see footage that says so.