Youd be right if the bus HAD visible hazards on at hundreds of yards away, but the hazards werent on until somepoint between traveling closer to the van and as the ground flattened out. Between then and me passing the van and bus was roughly a block. The bus didnt have hazards for that time.

I like that the camera shows when the yellow lights are on, but im curious if this is the entire video too; if so, then the driver clearly only had hazards on for a couple feet from the stop. From my memory compared to this video, there wouldnt be much of a time difference, and they possibly passed a couple cars length of distance if somehow the lights turned on as soon as thr bus was out of view. I drive around buses plenty, they have their flashers on for a long distance before the stop.

Thank you for your thorough response!