What I can’t work out, is what would have happened otherwise; The pedestrian has right of way, and had she been walking along without gesticulating, the cyclist would have presumably hit her or the lamp post. She showed no sign of slowing or stopping.
She should have slowed for this, or been pushing her bike.
The pedestrian wasn’t gesticulating wildly, I could see someone on a phone call or walking with a friend behaving similarly. To me it feels like a tragic accident, largely caused by the cyclist herself trying to seemingly cycle extremely closely between a pedestrian and a road, when she didn’t need to.